OE Quality 60-Day Returns

Dorman 917-420 Engine Oil Filler Tube - view 1

Dorman 917-420 Engine Oil Filler Tube - view 2

DormanPart #: 917-420

Dorman 917-420 Engine Oil Filler Tube

Name: Dorman 917-420 Engine Oil Filler Tube
Brand: Dorman
SKU: BKKY-917-420
Price: 40.67 USD
Availability: InStock

N/A

⚙️ 219 vehicles fit this part

🔍

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

$40.67Free Shipping

🚚Free ShippingNo Cost to Continental U.S.

🔄Free Returns*Wrong fit? No cost

🛡️60-Day ReturnsMoney back guarantee

*Free return shipping only qualifies if our fitment verification tool is used.

🔥

✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.

✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Chevrolet, GMC, Hummer, Buick, Cadillac, and Isuzu, Avalanche, Cheyenne, Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, Suburban 1500, Suburban 2500, Tahoe, Trailblazer, Envoy, Sierra, Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Yukon, Yukon XL 1500, Yukon XL 2500, H2, H3, Rainier, Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 1500 Classic, Sierra 1500 HD Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Silverado 1500 HD, Silverado 3500, SSR, Trailblazer EXT, Envoy XL, Sierra 1500 HD, Sierra 3500, Ascender, Envoy XUV, Silverado 2500, and Sierra 2500

🔄Easy Returns — Return within 60 days for a full refund

🚚Fast Shipping — Most orders ship same business day before 1pm CST

Not what you need? Click here for all Engine Oil Filler Tube options

Durable Engine Oil Filler Tube for Select GM and Isuzu Models

The Dorman 917-420 engine oil filler tube is designed specifically for a range of Buick, Cadillac, Chevrolet, GMC, Hummer, and Isuzu vehicles. Constructed from durable black plastic, this oil filler tube ensures a secure and reliable fit for your engine's oil fill system.

Material: High-quality black plastic for durability and corrosion resistance
Length: 5 inches for proper reach and fitment
Outside Diameter: 0.93 inches to match OEM specifications
Specific fitment for select GM and Isuzu models
Includes oil fill tube and o-ring for a complete installation

Product Details and Specifications

The Dorman 917-420 engine oil filler tube is engineered to meet the exact specifications required by various GM and Isuzu vehicles, including models such as the Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, Hummer H3, and Isuzu Ascender. Made from sturdy plastic, this tube resists heat and chemical exposure commonly found in engine compartments. The 5-inch length and 0.93-inch outside diameter ensure a precise fit, maintaining proper sealing and preventing oil leaks. The included o-ring helps secure the connection between the filler tube and the engine block, although no additional gasket or seal is provided.

Compatible Vehicles and Applications

This engine oil filler tube is compatible with a variety of specific models, including:

Buick Rainier
Cadillac Escalade, Escalade ESV, Escalade EXT
Chevrolet Avalanche 1500, Silverado 1500, Suburban 1500, Tahoe
GMC Sierra 1500, Sierra 2500 HD, Yukon XL 1500
Hummer H2, H3
Isuzu Ascender, Envoy, Envoy XL, Envoy XUV

Common Issues Addressed by This Part

Cracked or damaged oil filler tube causing oil leaks
Loose or worn filler tube connections leading to contamination
Replacement of missing or deteriorated oil fill tube components
Preventing engine oil spillage during refilling
Maintaining proper engine oil system pressure and sealing

Installation Notes and Tips

When installing the Dorman 917-420 engine oil filler tube, ensure the engine is cool to avoid burns. Remove the old filler tube carefully to prevent damage to surrounding components. Clean the mounting area thoroughly before installing the new tube and o-ring to ensure a proper seal. Hand-tighten the tube initially, then secure it firmly without over-tightening to avoid cracking the plastic. Verify the fitment with your specific vehicle model before installation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 917-420 engine oil filler tube undergoes quality inspections to ensure durability and reliable performance. While no specific warranty details are provided here, Dorman typically offers limited warranties on their replacement parts. Consult the product packaging or Dorman’s official resources for exact warranty terms.

Brand	Dorman
Part Number	917-420
Color	Black
Gasket Or Seal Included	No
Length	5
Material	Plastic
Outside Diameter	0.93
Package Contents	Oil Fill tube and O-ring
Universal Or Specific Fit	Specific

This part fits 219 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Position
2008	Chevrolet	Avalanche	5.3L	V8	N/A
2008	Chevrolet	Avalanche	6.0L	V8	N/A
2008	Chevrolet	Cheyenne	5.3L	V8	N/A
2008	Chevrolet	Silverado 1500	5.3L	V8	N/A
2008	Chevrolet	Silverado 1500	6.0L	V8	N/A
2008	Chevrolet	Silverado 1500	4.8L	V8	N/A
2008	Chevrolet	Silverado 2500 HD	6.0L	V8	N/A
2008	Chevrolet	Silverado 3500 HD	6.0L	V8	N/A
2008	Chevrolet	Suburban 1500	5.3L	V8	N/A
2008	Chevrolet	Suburban 1500	6.0L	V8	N/A
2008	Chevrolet	Suburban 2500	6.0L	V8	N/A
2008	Chevrolet	Tahoe	5.3L	V8	N/A
2008	Chevrolet	Tahoe	6.0L	V8	N/A
2008	Chevrolet	Tahoe	4.8L	V8	N/A
2008	Chevrolet	Tahoe	6.2L	V8	N/A
2008	Chevrolet	Trailblazer	5.3L	V8	N/A
2008	Chevrolet	Trailblazer	6.0L	V8	N/A
2008	GMC	Envoy	5.3L	V8	N/A
2008	GMC	Sierra	5.3L	V8	N/A
2008	GMC	Sierra	6.2L	V8	N/A
2008	GMC	Sierra 1500	5.3L	V8	N/A
2008	GMC	Sierra 1500	6.0L	V8	N/A
2008	GMC	Sierra 1500	4.8L	V8	N/A
2008	GMC	Sierra 1500	6.2L	V8	N/A
2008	GMC	Sierra 2500 HD	6.0L	V8	N/A
2008	GMC	Sierra 3500 HD	6.0L	V8	N/A
2008	GMC	Yukon	5.3L	V8	N/A
2008	GMC	Yukon	6.0L	V8	N/A
2008	GMC	Yukon	4.8L	V8	N/A
2008	GMC	Yukon	6.2L	V8	N/A
2008	GMC	Yukon XL 1500	5.3L	V8	N/A
2008	GMC	Yukon XL 1500	6.0L	V8	N/A
2008	GMC	Yukon XL 1500	6.2L	V8	N/A
2008	GMC	Yukon XL 2500	6.0L	V8	N/A
2008	Hummer	H2	6.2L	V8	N/A
2008	Hummer	H3	5.3L	V8	N/A
2007	Buick	Rainier	5.3L	V8	N/A
2007	Chevrolet	Avalanche	5.3L	V8	N/A
2007	Chevrolet	Avalanche	6.0L	V8	N/A
2007	Chevrolet	Cheyenne	5.3L	V8	N/A
2007	Chevrolet	Silverado 1500	5.3L	V8	N/A
2007	Chevrolet	Silverado 1500	6.0L	V8	N/A
2007	Chevrolet	Silverado 1500	4.8L	V8	N/A
2007	Chevrolet	Silverado 1500 Classic	5.3L	V8	N/A
2007	Chevrolet	Silverado 1500 Classic	6.0L	V8	N/A
2007	Chevrolet	Silverado 1500 Classic	4.8L	V8	N/A
2007	Chevrolet	Silverado 1500 HD Classic	6.0L	V8	N/A
2007	Chevrolet	Silverado 2500 HD	6.0L	V8	N/A
2007	Chevrolet	Silverado 2500 HD Classic	6.0L	V8	N/A
2007	Chevrolet	Silverado 3500 Classic	6.0L	V8	N/A
2007	Chevrolet	Silverado 3500 HD	6.0L	V8	N/A
2007	Chevrolet	Suburban 1500	5.3L	V8	N/A
2007	Chevrolet	Suburban 1500	6.0L	V8	N/A
2007	Chevrolet	Suburban 2500	6.0L	V8	N/A
2007	Chevrolet	Tahoe	5.3L	V8	N/A
2007	Chevrolet	Tahoe	4.8L	V8	N/A
2007	Chevrolet	Trailblazer	5.3L	V8	N/A
2007	Chevrolet	Trailblazer	6.0L	V8	N/A
2007	GMC	Envoy	5.3L	V8	N/A
2007	GMC	Sierra	5.3L	V8	N/A
2007	GMC	Sierra 1500	5.3L	V8	N/A
2007	GMC	Sierra 1500	6.0L	V8	N/A
2007	GMC	Sierra 1500	4.8L	V8	N/A
2007	GMC	Sierra 1500	6.2L	V8	N/A
2007	GMC	Sierra 1500 Classic	5.3L	V8	N/A
2007	GMC	Sierra 1500 Classic	6.0L	V8	N/A
2007	GMC	Sierra 1500 Classic	4.8L	V8	N/A
2007	GMC	Sierra 1500 HD Classic	6.0L	V8	N/A
2007	GMC	Sierra 2500 HD	6.0L	V8	N/A
2007	GMC	Sierra 2500 HD Classic	6.0L	V8	N/A
2007	GMC	Sierra 3500 Classic	6.0L	V8	N/A
2007	GMC	Sierra 3500 HD	6.0L	V8	N/A
2007	GMC	Yukon	5.3L	V8	N/A
2007	GMC	Yukon	4.8L	V8	N/A
2007	GMC	Yukon	6.2L	V8	N/A
2007	GMC	Yukon XL 1500	5.3L	V8	N/A
2007	GMC	Yukon XL 1500	6.0L	V8	N/A
2007	GMC	Yukon XL 1500	6.2L	V8	N/A
2007	GMC	Yukon XL 2500	6.0L	V8	N/A
2007	Hummer	H2	6.0L	V8	N/A
2006	Buick	Rainier	5.3L	V8	N/A
2006	Cadillac	Escalade	6.0L	V8	N/A
2006	Cadillac	Escalade ESV	6.0L	V8	N/A
2006	Cadillac	Escalade EXT	6.0L	V8	N/A
2006	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2006	Chevrolet	Silverado 1500	5.3L	V8	N/A
2006	Chevrolet	Silverado 1500	6.0L	V8	N/A
2006	Chevrolet	Silverado 1500	4.8L	V8	N/A
2006	Chevrolet	Silverado 1500 HD	6.0L	V8	N/A
2006	Chevrolet	Silverado 2500 HD	6.0L	V8	N/A
2006	Chevrolet	Silverado 3500	6.0L	V8	N/A
2006	Chevrolet	SSR	6.0L	V8	N/A
2006	Chevrolet	Suburban 1500	5.3L	V8	N/A
2006	Chevrolet	Suburban 1500	6.0L	V8	N/A
2006	Chevrolet	Suburban 2500	6.0L	V8	N/A
2006	Chevrolet	Tahoe	5.3L	V8	N/A
2006	Chevrolet	Tahoe	4.8L	V8	N/A
2006	Chevrolet	Trailblazer	5.3L	V8	N/A
2006	Chevrolet	Trailblazer	6.0L	V8	N/A
2006	Chevrolet	Trailblazer EXT	5.3L	V8	N/A
2006	GMC	Envoy	5.3L	V8	N/A
2006	GMC	Envoy XL	5.3L	V8	N/A
2006	GMC	Sierra 1500	5.3L	V8	N/A
2006	GMC	Sierra 1500	6.0L	V8	N/A
2006	GMC	Sierra 1500	4.8L	V8	N/A
2006	GMC	Sierra 1500 HD	6.0L	V8	N/A
2006	GMC	Sierra 2500 HD	6.0L	V8	N/A
2006	GMC	Sierra 3500	6.0L	V8	N/A
2006	GMC	Yukon	5.3L	V8	N/A
2006	GMC	Yukon	6.0L	V8	N/A
2006	GMC	Yukon	4.8L	V8	N/A
2006	GMC	Yukon XL 1500	5.3L	V8	N/A
2006	GMC	Yukon XL 1500	6.0L	V8	N/A
2006	GMC	Yukon XL 2500	6.0L	V8	N/A
2006	Hummer	H2	6.0L	V8	N/A
2006	Isuzu	Ascender	5.3L	V8	N/A
2005	Buick	Rainier	5.3L	V8	N/A
2005	Cadillac	Escalade	5.3L	V8	N/A
2005	Cadillac	Escalade	6.0L	V8	N/A
2005	Cadillac	Escalade ESV	6.0L	V8	N/A
2005	Cadillac	Escalade EXT	6.0L	V8	N/A
2005	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2005	Chevrolet	Silverado 1500	5.3L	V8	N/A
2005	Chevrolet	Silverado 1500	6.0L	V8	N/A
2005	Chevrolet	Silverado 1500	4.8L	V8	N/A
2005	Chevrolet	Silverado 1500 HD	6.0L	V8	N/A
2005	Chevrolet	Silverado 2500 HD	6.0L	V8	N/A
2005	Chevrolet	Silverado 3500	6.0L	V8	N/A
2005	Chevrolet	SSR	6.0L	V8	N/A
2005	Chevrolet	Suburban 1500	5.3L	V8	N/A
2005	Chevrolet	Suburban 2500	6.0L	V8	N/A
2005	Chevrolet	Tahoe	5.3L	V8	N/A
2005	Chevrolet	Tahoe	4.8L	V8	N/A
2005	Chevrolet	Trailblazer EXT	5.3L	V8	N/A
2005	GMC	Envoy	5.3L	V8	N/A
2005	GMC	Envoy XL	5.3L	V8	N/A
2005	GMC	Envoy XUV	5.3L	V8	N/A
2005	GMC	Sierra 1500	5.3L	V8	N/A
2005	GMC	Sierra 1500	6.0L	V8	N/A
2005	GMC	Sierra 1500	4.8L	V8	N/A
2005	GMC	Sierra 1500 HD	6.0L	V8	N/A
2005	GMC	Sierra 2500 HD	6.0L	V8	N/A
2005	GMC	Sierra 3500	6.0L	V8	N/A
2005	GMC	Yukon	5.3L	V8	N/A
2005	GMC	Yukon	6.0L	V8	N/A
2005	GMC	Yukon	4.8L	V8	N/A
2005	GMC	Yukon XL 1500	5.3L	V8	N/A
2005	GMC	Yukon XL 1500	6.0L	V8	N/A
2005	GMC	Yukon XL 2500	6.0L	V8	N/A
2005	Hummer	H2	6.0L	V8	N/A
2005	Isuzu	Ascender	5.3L	V8	N/A
2004	Buick	Rainier	5.3L	V8	N/A
2004	Cadillac	Escalade	5.3L	V8	N/A
2004	Cadillac	Escalade	6.0L	V8	N/A
2004	Cadillac	Escalade ESV	6.0L	V8	N/A
2004	Cadillac	Escalade EXT	6.0L	V8	N/A
2004	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2004	Chevrolet	Silverado 1500	5.3L	V8	N/A
2004	Chevrolet	Silverado 1500	6.0L	V8	N/A
2004	Chevrolet	Silverado 1500	4.8L	V8	N/A
2004	Chevrolet	Silverado 2500	6.0L	V8	N/A
2004	Chevrolet	Silverado 2500 HD	6.0L	V8	N/A
2004	Chevrolet	Silverado 3500	6.0L	V8	N/A
2004	Chevrolet	SSR	5.3L	V8	N/A
2004	Chevrolet	Suburban 1500	5.3L	V8	N/A
2004	Chevrolet	Suburban 2500	6.0L	V8	N/A
2004	Chevrolet	Tahoe	5.3L	V8	N/A
2004	Chevrolet	Tahoe	4.8L	V8	N/A
2004	Chevrolet	Trailblazer EXT	5.3L	V8	N/A
2004	GMC	Envoy XL	5.3L	V8	N/A
2004	GMC	Envoy XUV	5.3L	V8	N/A
2004	GMC	Sierra 1500	5.3L	V8	N/A
2004	GMC	Sierra 1500	4.8L	V8	N/A
2004	GMC	Sierra 2500	6.0L	V8	N/A
2004	GMC	Sierra 2500 HD	6.0L	V8	N/A
2004	GMC	Sierra 3500	6.0L	V8	N/A
2004	GMC	Yukon	5.3L	V8	N/A
2004	GMC	Yukon	6.0L	V8	N/A
2004	GMC	Yukon	4.8L	V8	N/A
2004	GMC	Yukon XL 1500	5.3L	V8	N/A
2004	GMC	Yukon XL 1500	6.0L	V8	N/A
2004	GMC	Yukon XL 2500	6.0L	V8	N/A
2004	Hummer	H2	6.0L	V8	N/A
2004	Isuzu	Ascender	5.3L	V8	N/A
2003	Cadillac	Escalade	5.3L	V8	N/A
2003	Cadillac	Escalade	6.0L	V8	N/A
2003	Cadillac	Escalade ESV	6.0L	V8	N/A
2003	Cadillac	Escalade EXT	6.0L	V8	N/A
2003	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2003	Chevrolet	Silverado 1500	5.3L	V8	N/A
2003	Chevrolet	Silverado 1500	6.0L	V8	N/A
2003	Chevrolet	Silverado 1500	4.8L	V8	N/A
2003	Chevrolet	Silverado 1500 HD	6.0L	V8	N/A
2003	Chevrolet	Silverado 2500	6.0L	V8	N/A
2003	Chevrolet	Silverado 2500 HD	6.0L	V8	N/A
2003	Chevrolet	Silverado 3500	6.0L	V8	N/A
2003	Chevrolet	SSR	5.3L	V8	N/A
2003	Chevrolet	Suburban 1500	5.3L	V8	N/A
2003	Chevrolet	Suburban 2500	6.0L	V8	N/A
2003	Chevrolet	Tahoe	5.3L	V8	N/A
2003	Chevrolet	Tahoe	4.8L	V8	N/A
2003	Chevrolet	Trailblazer EXT	5.3L	V8	N/A
2003	GMC	Envoy XL	5.3L	V8	N/A
2003	GMC	Sierra 1500	5.3L	V8	N/A
2003	GMC	Sierra 1500	4.8L	V8	N/A
2003	GMC	Sierra 1500 HD	6.0L	V8	N/A
2003	GMC	Sierra 2500	6.0L	V8	N/A
2003	GMC	Sierra 2500 HD	6.0L	V8	N/A
2003	GMC	Sierra 3500	6.0L	V8	N/A
2003	GMC	Yukon	5.3L	V8	N/A
2003	GMC	Yukon	6.0L	V8	N/A
2003	GMC	Yukon	4.8L	V8	N/A
2003	GMC	Yukon XL 1500	5.3L	V8	N/A
2003	GMC	Yukon XL 1500	6.0L	V8	N/A
2003	GMC	Yukon XL 2500	6.0L	V8	N/A
2003	Hummer	H2	6.0L	V8	N/A
2003	Isuzu	Ascender	5.3L	V8	N/A
2002	Cadillac	Escalade	6.0L	V8	N/A
2002	Cadillac	Escalade EXT	6.0L	V8	N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

125743868125743860

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.