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NGK
Standard Carded Spark PlugNGK 1503 Spark Plug
| Brand | NGK 1503 |
|---|---|
| Resistance | 5000 |
| Ground Electrode Tip Design | Standard |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Removable nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | .028 |
| Ground Electrode Quantity | 1 |
| Hex Size | 13/16 |
| Insulator Height | 55.00 |
| Manufacturer Heat Range | 7 |
| Seat Type | Flat |
| Reach | .5 |
| Thread Diameter | 14.00 |
| Part Number | Bpr7hs blyb |
| Stock Number | 1503 |
| Product line | Standard Carded Spark Plug |
| Fits | Aprilia, Arctic Cat, Bombardier, Ducati, E-TON, Kasea, Kawasaki, Polaris, Suzuki, TGB, Vento, and Yamaha · 116 vehicles |
OE-style replacement. Built to original equipment standards for dependable ignition performance.
Copper core design. Copper center electrode and nickel tips support consistent spark delivery.
Resistor plug. 5k ohm resistance helps reduce electrical noise in the ignition system.
Cross-references AP Exhaust 7531, BENDIX PREMIUM BRAKE SHOES 814 and Carlson 7931 for the same application. See all 28.
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Overview
NGK 1503 is a standard carded spark plug built for a wide range of small-displacement motorcycles, scooters, and ATVs. It uses a copper core center electrode, nickel tip materials, and a 5k ohm resistor for stable ignition performance. This NGK spark plug 1503 is specified for applications that call for a 0.028-inch gap.
Key Features
- Copper core center electrode with nickel tip materials for consistent spark delivery.
- 5k ohm resistor helps control electrical noise in the ignition system.
- Standard ground electrode design with a flat seat and 14 mm thread diameter.
- Pre-gapped to 0.028 inches for listed applications.
- Removable nut terminal for common ignition wire connections.
Detailed Description
NGK 1503, also identified as BPR7HS BLYB, is an OE-style spark plug engineered to meet original equipment standards for durability and operational performance. The heat range 7 specification, 0.5-inch reach, and standard electrode configuration make it a direct service part for many compact powersports engines. Fitment includes 2008-2011 Yamaha YW50 Zuma, 2003-2006 Polaris Predator 90, and 1987-2006 Suzuki LT80 QuadSport, along with other listed Yamaha, E-TON, Bombardier, Kawasaki, TGB, Arctic Cat, Kasea, Aprilia, Ducati, and Vento applications. This part cross-references Champion Spark Plug (e.g., 932-1, 932M) for the same application.
Common Uses
- Restores weak or inconsistent spark output.
- Addresses hard starting caused by worn plug electrodes.
- Helps correct misfire or rough running in listed engines.
- Replaces fouled plugs with the specified gap and heat range.
- Supports routine ignition service on powersports equipment.
Installation Notes
Verify the application against the fitment list before installation. Set the spark plug gap to 0.028 inches unless the vehicle note specifies 0.024 inches. Confirm the seat type, thread diameter, reach, and terminal style match the engine specification. NGK 1503 should be installed to the manufacturer’s recommended torque and service procedure.
Quality Assurance
NGK is a major OE spark plug supplier in North America with more than 80 years of automotive experience. The brand manufactures ignition components to original equipment standards and supports a broad range of automotive, motorcycle, marine, and small engine applications. Part number 1503 reflects NGK’s established OE-focused product line.
This part fits 116 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2011 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2010 | E-TON | Beamer 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2010 | E-TON | Matrix 150 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2010 | E-TON | Matrix 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2010 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2009 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2008 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2007 | Vento | Triton LI | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | Bombardier | DS50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | Bombardier | DS90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | Kawasaki | KFX80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | Polaris | Predator 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | Polaris | Predator 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | Polaris | Sportsman 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | TGB | 50 Adventure Series | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2006 | TGB | 90 Adventure Series | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Arctic Cat | 50 2x4 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Bombardier | DS50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Bombardier | DS90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | E-TON | Viper 70 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | E-TON | Viper 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Kasea | Skyhawk 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Kawasaki | KFX80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Polaris | Predator 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Polaris | Predator 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Polaris | Sportsman 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | TGB | 50 Adventure Series | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | TGB | 90 Adventure Series | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Yamaha | YJ50RA Vino Classic | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2005 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Aprilia | Mojito Custom 50 | -L | -- | Aprilia Engine; Gap 0.028"; Standard Carded Spark Plug |
| 2004 | Aprilia | SR 50 Ditech | -L | -- | H2O; Carburetor; Gap 0.028"; Standard Carded Spark Plug |
| 2004 | Arctic Cat | 50 2x4 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Arctic Cat | 90 2x4 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Arctic Cat | 90 2x4 4-Stroke | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | E-TON | Viper 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | E-TON | Viper 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Kasea | Skyhawk 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Kawasaki | KFX80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Polaris | Predator 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Polaris | Predator 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Polaris | Sportsman 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Yamaha | YJ50 Vino | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Yamaha | YJ50RA Vino Classic | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2004 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Aprilia | SR 50 Ditech | -L | -- | H2O; Carburetor; Gap 0.028"; Standard Carded Spark Plug |
| 2003 | Arctic Cat | 90 2x4 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | E-TON | Viper 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | E-TON | Viper 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Kasea | Skyhawk 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Kawasaki | KFX80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Polaris | Predator 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Polaris | Scrambler 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Polaris | Scrambler 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Polaris | Sportsman 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Yamaha | YJ50 Vino | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Yamaha | YJ50RA Vino Classic | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2003 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Aprilia | SR 50 Ditech | -L | -- | H2O; Carburetor; Gap 0.028"; Standard Carded Spark Plug |
| 2002 | Arctic Cat | 90 2x4 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Bombardier | DS50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Bombardier | DS90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | E-TON | Sierra 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | E-TON | Viper 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | E-TON | Viper 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Kasea | Skyhawk 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Polaris | Scrambler 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Polaris | Scrambler 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Polaris | Sportsman 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Yamaha | YJ50 Vino | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Yamaha | YJ50RA Vino Classic | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2002 | Yamaha | YW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2001 | E-TON | Sierra 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2001 | E-TON | Thunder 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2001 | Polaris | Scrambler 50 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2001 | Polaris | Scrambler 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2001 | Polaris | Sportsman 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2001 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2001 | Yamaha | YJ50 Vino | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2000 | E-TON | Sierra 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2000 | E-TON | Thunder 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 2000 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1999 | E-TON | Thunder 90 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1999 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1998 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1997 | Ducati | 400 | -L | -- | Spark Plug Gap: 0.024 inches; Standard Carded Spark Plug |
| 1997 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1996 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1995 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1994 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1993 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1992 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1991 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1990 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1990 | Yamaha | BW80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1990 | Yamaha | CG50 Jog | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1990 | Yamaha | CW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1989 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1989 | Yamaha | CG50 Jog | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1989 | Yamaha | CW50 Zuma | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1988 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1988 | Yamaha | BW80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1988 | Yamaha | CG50 Jog | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1987 | Suzuki | LT80 QuadSport | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1987 | Yamaha | BW80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1986 | Yamaha | BW80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1984 | Yamaha | CV80 Riva 80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1983 | Yamaha | CV80 Riva 80 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1976 | Suzuki | A100 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| 1971 | Suzuki | T125R | -L | -- | Spark Plug Gap: 0.024 inches; Standard Carded Spark Plug |
| 1971 | Suzuki | TC120 | -L | -- | Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug |
| No rows match your filter. | |||||
Directly replaces or cross-references 28 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 7531BENDIX PREMIUM BRAKE SHOES — 814Carlson — 7931Champion Spark Plug — 932-1Champion Spark Plug — 932MDENSO Auto Parts — 4022NGK — 15030K209201112BEN000088283814C814S932S09482-0025594701-0022794703-0022798076-57717AP2BEN000088E3.32E7RTCE7TCQL82YCQL82YC SRL82YCRL82YCCW22FPRW22FPR-UWR5BC