NGK
Standard Carded Spark Plug

NGK 1507 Spark Plug

Brand NGK 1507
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 6
Seat Type Flat
Reach .5
Thread Diameter 14.00
Part Number Br6hs blyb
Stock Number 1507
Product line Standard Carded Spark Plug
Fits Arctic Cat, Cub Cadet, Honda, KTM, Kubota, and Yamaha · 51 vehicles

OE supplier heritage. NGK brings original-equipment standards to this standard spark plug line.

Copper core design. Promotes stable ignition performance with nickel electrode materials.

Pre-gapped service part. Set to 0.028 in for the listed applications.

Cross-references Anchor 3072, Anchor 3686 and Anchor 6053 for the same application. See all 46.

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Overview

NGK 1507 is a standard carded spark plug built with a copper core center electrode, nickel center and ground electrode tips, and a 5k ohm resistor. It is a direct replacement spark plug for a wide range of small-engine and powersports applications, including Kubota RTV400Ci and Yamaha LB50 models.

Use NGK 1507 when you need a spark plug with a flat seat, 14 mm thread diameter, 0.5 in reach, and a pre-gap set to 0.028 in. The removable nut terminal supports common ignition lead connections, and the standard ground configuration keeps the design straightforward for routine service.

Key Features

  • Copper core center electrode for stable ignition performance.
  • Nickel center and ground electrode tips for standard spark plug construction.
  • 5k ohm resistor helps control electrical noise in the ignition system.
  • Flat seat, 14 mm thread, and 13/16 in hex for common service fitment.
  • Pre-gapped to 0.028 in for listed applications.

Detailed Description

NGK 1507, also identified by part number BR6HS BLYB, is part of NGK’s Standard Carded Spark Plug line. The design follows OE-style construction with a copper core center electrode, nickel electrode materials, and a removable nut terminal. For buyers searching for an NGK spark plug for Kubota RTV400Ci or Yamaha LB50 applications, this part provides the specified heat range, reach, and seat type needed for the listed engines. The same NGK 1507 spark plug is also cross-referenced to Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

NGK’s OE supplier background and long automotive manufacturing history support this product line with consistent standards for ignition service across domestic and import applications.

What It Helps Address

  • Hard starting caused by worn or fouled spark plugs.
  • Misfire from incorrect gap or degraded electrode condition.
  • Weak ignition performance in small-engine and powersports use.
  • Electrical interference concerns in ignition circuits.
  • Service replacement needs for listed NGK 1507 applications.

Installation Notes

Verify the specified gap before installation and set it to 0.028 in for the listed applications unless the fitment note states 0.024 in. Confirm the seat type, thread diameter, reach, and heat range match the engine specification before installation. Use the removable nut terminal only with the ignition lead style required by the application.

Quality Assurance

NGK is a major OE supplier and manufacturer of spark plugs in North America, with more than 80 years of automotive experience and original-equipment manufacturing standards.

This part fits 51 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2018Cub CadetChallenger 400-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2018Cub CadetChallenger 400 4x4-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2018Cub CadetChallenger 400 LX-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2018KubotaRTV400Ci-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2017Cub CadetChallenger 400-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2017Cub CadetChallenger 400 LX-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2017KubotaRTV400Ci-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2016Cub CadetChallenger 400-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2016Cub CadetChallenger 400 LX-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2016KubotaRTV400Ci-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2015KubotaRTV400Ci-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2014KubotaRTV400Ci-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2013KubotaRTV400Ci-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
2012KubotaRTV400Ci-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1999Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1998Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1997Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1997KTM50 SXR Pro Jr-L--Spark Plug Gap: 0.024 inches; Standard Carded Spark Plug
1997KTM50 SXR Pro Sr-L--Spark Plug Gap: 0.024 inches; Standard Carded Spark Plug
1996Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1995Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1994Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1993Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1992Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1991Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1990Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1989Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1988Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1987Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1986Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1985Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1982YamahaLB50-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1982YamahaLB50 Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1981Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1981YamahaLB50-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1981YamahaLB50 Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1980Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1980YamahaLB50 Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1979Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1979YamahaLB50 Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1978Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1978YamahaLB50 Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1978YamahaLB80 II Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1977Arctic CatKitty Cat-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1977YamahaLB80 Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1977YamahaLB80 II Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1976YamahaLB80 II Chappy-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1975HondaMR50-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1975YamahaTY80-L--Spark Plug Gap: 0.024 inches; Standard Carded Spark Plug
1974HondaMR50-L--Set spark plug gap to 0.028 inches.; Standard Carded Spark Plug
1974YamahaTY80-L--Spark Plug Gap: 0.024 inches; Standard Carded Spark Plug
Directly replaces or cross-references 46 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 3072Anchor — 3686Anchor — 6053Bosch — 79026Champion Spark Plug — 830Champion Spark Plug — 931MNGK — 1507065-01401-50065-01405-10931-1931S933-1933M933S999-06910-P9-00209482-0008890793-2005792070-200892070-211794701-0024894702-0024894709-0024898076-56716CW6NRCW7NRCW67NRE3.32E6CE6RCQL7J5QL82CQL82C SQL86QL86CQL86C SR42CFR42FRL7JRL82RL85RL86RL86CW20FSRW20FSRUWR7AWR7AC