Apex AHG385 Engine Cylinder Head Gasket

Name: Apex AHG385 Engine Cylinder Head Gasket
Brand: Apex
SKU: FMVJ-AHG385
Price: 48.59 USD
Availability: InStock

82 vehicles fit this part

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

Fitment: Buick, Cadillac, Chevrolet, GMC, and Isuzu, Ascender, Avalanche 1500, Envoy XL, Envoy XUV, Escalade, Express 1500, Express 2500, Express 3500, Rainier, Savana 1500, Savana 2500, Savana 3500, Sierra 1500, Sierra 1500 Classic, Silverado 1500, Silverado 1500 Classic, SSR, Suburban 1500, Tahoe, Trailblazer EXT, Yukon, and Yukon XL 1500

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Reliable Engine Cylinder Head Gasket for GM and Isuzu Vehicles

The Apex AHG385 engine cylinder head gasket is designed for precise fitment with select Buick, Cadillac, Chevrolet, GMC, and Isuzu models. Engineered to maintain a secure seal between the cylinder head and engine block, this gasket supports optimal engine performance and durability.

Compatible with Buick Ascender and Cadillac Escalade
Fits Chevrolet Silverado 1500 Classic and Avalanche 1500
Suitable for GMC Sierra 1500 and Yukon XL 1500
Also fits Isuzu Ascender and Envoy XL models
Part number AHG385 ensures exact replacement fit

Product Details and Specifications

The Apex AHG385 engine cylinder head gasket is manufactured to meet OEM specifications for a range of GM and Isuzu vehicles. This gasket is critical for sealing combustion gases, coolant, and oil passages between the cylinder head and engine block. Its design helps prevent leaks that can lead to engine overheating or loss of compression. The AHG385 is engineered for durability under high temperature and pressure conditions common in V8 and V6 engines found in models such as the Chevrolet Suburban 1500 and GMC Yukon.

Compatible Vehicle Applications

Buick Ascender
Cadillac Escalade
Chevrolet Avalanche 1500, Silverado 1500 Classic, Suburban 1500, Tahoe
GMC Sierra 1500, Yukon, Yukon XL 1500
Isuzu Ascender, Envoy XL, Envoy XUV

Common Engine Issues Addressed

Prevents head gasket leaks causing coolant or oil mixing
Maintains engine compression for consistent power output
Reduces risk of engine overheating due to seal failure
Helps avoid exhaust gas leaks affecting emissions
Supports engine longevity by ensuring proper sealing

Installation Notes and Tips

Ensure the cylinder head and engine block surfaces are clean and free of debris before installation. Follow manufacturer torque specifications when tightening head bolts to avoid warping or gasket damage. It is recommended to replace the head gasket whenever the cylinder head is removed or if any signs of leakage are detected. Use proper tools and procedures to maintain engine integrity during installation.

Quality Assurance and Warranty

The Apex AHG385 engine cylinder head gasket is produced under strict quality control standards to meet or exceed OEM requirements. While specific warranty details are not provided, Apex products typically undergo rigorous testing to ensure reliability and performance in demanding engine environments.

This part fits 82 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Position
2008	Chevrolet	Express 1500	5.3L	V8	N/A
2007	Chevrolet	Express 1500	5.3L	V8	N/A
2007	Chevrolet	Express 2500	4.8L	V8	N/A
2007	Chevrolet	Express 3500	4.8L	V8	N/A
2007	Chevrolet	Silverado 1500 Classic	4.8L	V8	N/A
2007	GMC	Savana 1500	5.3L	V8	N/A
2007	GMC	Savana 2500	4.8L	V8	N/A
2007	GMC	Savana 3500	4.8L	V8	N/A
2007	GMC	Sierra 1500 Classic	4.8L	V8	N/A
2006	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2006	Chevrolet	Express 1500	5.3L	V8	N/A
2006	Chevrolet	Express 2500	4.8L	V8	N/A
2006	Chevrolet	Express 3500	4.8L	V8	N/A
2006	Chevrolet	Silverado 1500	4.8L	V8	N/A
2006	Chevrolet	Suburban 1500	5.3L	V8	N/A
2006	Chevrolet	Tahoe	4.8L	V8	N/A
2006	GMC	Savana 1500	5.3L	V8	N/A
2006	GMC	Savana 2500	4.8L	V8	N/A
2006	GMC	Savana 3500	4.8L	V8	N/A
2006	GMC	Sierra 1500	4.8L	V8	N/A
2006	GMC	Yukon	4.8L	V8	N/A
2006	GMC	Yukon XL 1500	5.3L	V8	N/A
2005	Cadillac	Escalade	5.3L	V8	N/A
2005	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2005	Chevrolet	Express 1500	5.3L	V8	N/A
2005	Chevrolet	Express 2500	4.8L	V8	N/A
2005	Chevrolet	Express 3500	4.8L	V8	N/A
2005	Chevrolet	Silverado 1500	4.8L	V8	N/A
2005	Chevrolet	Suburban 1500	5.3L	V8	N/A
2005	Chevrolet	Tahoe	4.8L	V8	N/A
2005	GMC	Savana 1500	5.3L	V8	N/A
2005	GMC	Savana 2500	4.8L	V8	N/A
2005	GMC	Savana 3500	4.8L	V8	N/A
2005	GMC	Sierra 1500	4.8L	V8	N/A
2005	GMC	Yukon	4.8L	V8	N/A
2005	GMC	Yukon XL 1500	5.3L	V8	N/A
2004	Buick	Rainier	5.3L	V8	N/A
2004	Cadillac	Escalade	5.3L	V8	N/A
2004	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2004	Chevrolet	Express 1500	5.3L	V8	N/A
2004	Chevrolet	Express 2500	4.8L	V8	N/A
2004	Chevrolet	Express 3500	4.8L	V8	N/A
2004	Chevrolet	Silverado 1500	4.8L	V8	N/A
2004	Chevrolet	SSR	5.3L	V8	N/A
2004	Chevrolet	Suburban 1500	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	Savana 1500	5.3L	V8	N/A
2004	GMC	Savana 2500	4.8L	V8	N/A
2004	GMC	Savana 3500	4.8L	V8	N/A
2004	GMC	Sierra 1500	4.8L	V8	N/A
2004	GMC	Yukon	4.8L	V8	N/A
2004	GMC	Yukon XL 1500	5.3L	V8	N/A
2004	Isuzu	Ascender	5.3L	V8	N/A
2003	Cadillac	Escalade	5.3L	V8	N/A
2003	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2003	Chevrolet	Express 1500	5.3L	V8	N/A
2003	Chevrolet	Express 2500	4.8L	V8	N/A
2003	Chevrolet	Express 3500	4.8L	V8	N/A
2003	Chevrolet	Silverado 1500	4.8L	V8	N/A
2003	Chevrolet	SSR	5.3L	V8	N/A
2003	Chevrolet	Suburban 1500	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	Savana 1500	5.3L	V8	N/A
2003	GMC	Savana 2500	4.8L	V8	N/A
2003	GMC	Savana 3500	4.8L	V8	N/A
2003	GMC	Sierra 1500	4.8L	V8	N/A
2003	GMC	Yukon	4.8L	V8	N/A
2003	GMC	Yukon XL 1500	5.3L	V8	N/A
2003	Isuzu	Ascender	5.3L	V8	N/A
2002	Cadillac	Escalade	5.3L	V8	N/A
2002	Chevrolet	Avalanche 1500	5.3L	V8	N/A
2002	Chevrolet	Silverado 1500	4.8L	V8	N/A
2002	Chevrolet	Suburban 1500	5.3L	V8	N/A
2002	Chevrolet	Tahoe	4.8L	V8	N/A
2002	GMC	Sierra 1500	4.8L	V8	N/A
2002	GMC	Yukon	4.8L	V8	N/A
2002	GMC	Yukon XL 1500	5.3L	V8	N/A

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