Dorman 42108 Brake Master Cylinder Reservoir Cap and Gasket Kit

Name: Dorman 42108 Brake Master Cylinder Reservoir Cap and Gasket Kit
Brand: Dorman
SKU: BCZF-42108
Price: 34.49 USD
Availability: InStock

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317 vehicles fit this part

Select your vehicle to confirm fitment

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

Fitment: Chevrolet, GMC, Dodge, Cadillac, Buick, Oldsmobile, and Pontiac, C2500, K2500, Suburban 1500, Suburban 2500, Tahoe, Yukon, Yukon XL 1500, Yukon XL 2500, C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, C1500, K1500, Ram 1500, Ram 2500, Blazer, C3500, K3500, Jimmy, DeVille, Fleetwood, Electra, LeSabre, Reatta, Riviera, Eldorado, Seville, 98, Delta 88, Toronado, Bonneville, Century, Skyhawk, Skylark, Somerset, Cimarron, Cavalier, Celebrity, Calais, Cutlass Ciera, Firenza, 6000, Grand Am, Sunbird, Somerset Regal, J2000 Sunbird, Omega, Phoenix, and J2000

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Not what you need? See all Brake Master Cylinder Reservoir Cap and Gasket Kit options

Reliable Brake Master Cylinder Reservoir Cap and Gasket Kit

The Dorman 42108 Brake Master Cylinder Reservoir Cap and Gasket Kit provides essential sealing components designed for a range of GM and Dodge vehicles. This kit includes two master cylinder gaskets engineered to maintain proper brake fluid containment and prevent leaks.

Includes 2 master cylinder gaskets for secure sealing
Compatible with Buick, Cadillac, Chevrolet, Dodge, GMC, Oldsmobile, and Pontiac models
Designed to fit specific models such as Chevrolet Blazer, GMC Suburban, Dodge Ram 1500, and Cadillac DeVille
Part number 42108 ensures correct replacement parts
Durable materials resist brake fluid corrosion and wear

Product Details and Compatibility

The Dorman 42108 kit contains two master cylinder gaskets that are critical for maintaining the integrity of the brake master cylinder reservoir. These gaskets help prevent brake fluid leaks that can compromise braking performance. This kit is compatible with a wide range of vehicles including Buick Century, Cadillac Eldorado, Chevrolet C1500 and Tahoe, Dodge Ram 2500, GMC Yukon XL 1500, Oldsmobile Cutlass Ciera, and Pontiac Grand Am among others. The precise fitment ensures proper sealing and reliable brake system operation.

Common Applications and Problem Resolution

Prevents brake fluid leaks from the master cylinder reservoir
Eliminates moisture and contaminants entering the brake fluid system
Addresses worn or damaged reservoir gaskets causing brake fluid loss
Helps maintain consistent brake pedal feel and performance
Supports brake system maintenance on GM and Dodge trucks and passenger cars

Installation Notes and Tips

When installing the Dorman 42108 master cylinder gaskets, ensure the reservoir and surrounding areas are clean and free of debris. Carefully remove the old gaskets and inspect the reservoir cap for damage. Properly seat the new gaskets to avoid leaks and verify the cap is securely tightened. It is recommended to check brake fluid levels and bleed the brake system if necessary after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The 42108 Brake Master Cylinder Reservoir Cap and Gasket Kit is backed by Dorman's quality standards. Please refer to Dorman's warranty policy for specific coverage details.

Brand	Dorman
Part Number	42108
Package Contents	2 Master Cylinder Gaskets

This part fits 317 vehicles. Search below:

Year	Make	Model	Drive Type	Position	Notes
2000	Chevrolet	C2500		N/A
2000	Chevrolet	K2500		N/A
2000	Chevrolet	Suburban 1500		N/A
2000	Chevrolet	Suburban 2500		N/A
2000	Chevrolet	Tahoe		N/A
2000	GMC	C2500		N/A
2000	GMC	Yukon		N/A
2000	GMC	Yukon XL 1500		N/A
2000	GMC	Yukon XL 2500		N/A
1999	Chevrolet	C1500 Suburban		N/A
1999	Chevrolet	C2500		N/A
1999	Chevrolet	C2500 Suburban		N/A
1999	Chevrolet	K1500 Suburban		N/A
1999	Chevrolet	K2500		N/A
1999	Chevrolet	K2500 Suburban		N/A
1999	Chevrolet	Tahoe		N/A
1999	GMC	C1500 Suburban		N/A
1999	GMC	C2500		N/A
1999	GMC	C2500 Suburban		N/A
1999	GMC	K1500 Suburban		N/A
1999	GMC	K2500 Suburban		N/A
1999	GMC	Yukon		N/A
1998	Chevrolet	C1500		N/A
1998	Chevrolet	C1500 Suburban		N/A
1998	Chevrolet	C2500		N/A
1998	Chevrolet	C2500 Suburban		N/A
1998	Chevrolet	K1500		N/A
1998	Chevrolet	K1500 Suburban		N/A
1998	Chevrolet	K2500		N/A
1998	Chevrolet	K2500 Suburban		N/A
1998	Chevrolet	Tahoe		N/A
1998	GMC	C1500 Suburban		N/A
1998	GMC	C2500		N/A
1998	GMC	C2500 Suburban		N/A
1998	GMC	K1500 Suburban		N/A
1998	GMC	K2500 Suburban		N/A
1998	GMC	Yukon		N/A
1997	Chevrolet	C1500		N/A
1997	Chevrolet	C1500 Suburban		N/A
1997	Chevrolet	C2500		N/A
1997	Chevrolet	C2500 Suburban		N/A
1997	Chevrolet	K1500		N/A
1997	Chevrolet	K1500 Suburban		N/A
1997	Chevrolet	K2500		N/A
1997	Chevrolet	K2500 Suburban		N/A
1997	Chevrolet	Tahoe		N/A
1997	Dodge	Ram 1500		N/A
1997	Dodge	Ram 2500	RWD	N/A
1997	Dodge	Ram 2500	4WD	N/A	7,500 Lb. GVW
1997	GMC	C1500 Suburban		N/A
1997	GMC	C2500		N/A
1997	GMC	C2500 Suburban		N/A
1997	GMC	K1500 Suburban		N/A
1997	GMC	K2500 Suburban		N/A
1997	GMC	Yukon		N/A
1996	Chevrolet	C1500		N/A
1996	Chevrolet	C1500 Suburban		N/A
1996	Chevrolet	C2500		N/A
1996	Chevrolet	C2500 Suburban		N/A
1996	Chevrolet	K1500		N/A
1996	Chevrolet	K1500 Suburban		N/A
1996	Chevrolet	K2500		N/A
1996	Chevrolet	K2500 Suburban		N/A
1996	Chevrolet	Tahoe		N/A
1996	Dodge	Ram 1500		N/A
1996	Dodge	Ram 2500	RWD	N/A
1996	Dodge	Ram 2500	4WD	N/A	7,500 Lb. GVW
1996	GMC	C1500 Suburban		N/A
1996	GMC	C2500		N/A
1996	GMC	C2500 Suburban		N/A
1996	GMC	K1500 Suburban		N/A
1996	GMC	K2500 Suburban		N/A
1996	GMC	Yukon		N/A
1995	Chevrolet	C1500		N/A
1995	Chevrolet	C1500 Suburban		N/A
1995	Chevrolet	C2500		N/A
1995	Chevrolet	C2500 Suburban		N/A
1995	Chevrolet	K1500		N/A
1995	Chevrolet	K1500 Suburban		N/A
1995	Chevrolet	K2500		N/A
1995	Chevrolet	K2500 Suburban		N/A
1995	Chevrolet	Tahoe		N/A
1995	Dodge	Ram 1500		N/A
1995	Dodge	Ram 2500	RWD	N/A
1995	Dodge	Ram 2500	4WD	N/A	7,500 Lb. GVW
1995	GMC	C1500 Suburban		N/A
1995	GMC	C2500		N/A
1995	GMC	C2500 Suburban		N/A
1995	GMC	K1500 Suburban		N/A
1995	GMC	K2500 Suburban		N/A
1995	GMC	Yukon		N/A
1994	Chevrolet	Blazer		N/A
1994	Chevrolet	C1500		N/A
1994	Chevrolet	C1500 Suburban		N/A
1994	Chevrolet	C2500		N/A
1994	Chevrolet	C2500 Suburban		N/A
1994	Chevrolet	C3500		N/A	w/Dual Rear Wheels (DRW)
1994	Chevrolet	K1500		N/A
1994	Chevrolet	K1500 Suburban		N/A
1994	Chevrolet	K2500		N/A
1994	Chevrolet	K2500 Suburban		N/A
1994	Chevrolet	K3500		N/A	w/Dual Rear Wheels (DRW)
1994	Dodge	Ram 1500		N/A
1994	Dodge	Ram 2500	RWD	N/A
1994	Dodge	Ram 2500	4WD	N/A	7,500 Lb. GVW
1994	GMC	C1500 Suburban		N/A
1994	GMC	C2500		N/A
1994	GMC	C2500 Suburban		N/A
1994	GMC	C3500		N/A	w/Dual Rear Wheels (DRW)
1994	GMC	Jimmy		N/A
1994	GMC	K1500 Suburban		N/A
1994	GMC	K2500 Suburban		N/A
1994	GMC	K3500		N/A	w/Dual Rear Wheels (DRW)
1994	GMC	Yukon		N/A
1993	Cadillac	DeVille		N/A	Heavy Duty Brakes
1993	Cadillac	Fleetwood		N/A	Heavy Duty Brakes
1993	Chevrolet	Blazer		N/A
1993	Chevrolet	C1500		N/A
1993	Chevrolet	C1500 Suburban		N/A
1993	Chevrolet	C2500		N/A
1993	Chevrolet	C2500 Suburban		N/A
1993	Chevrolet	C3500		N/A	w/Dual Rear Wheels (DRW)
1993	Chevrolet	K1500		N/A
1993	Chevrolet	K1500 Suburban		N/A
1993	Chevrolet	K2500		N/A
1993	Chevrolet	K2500 Suburban		N/A
1993	Chevrolet	K3500		N/A	w/Dual Rear Wheels (DRW)
1993	GMC	C1500 Suburban		N/A
1993	GMC	C2500		N/A
1993	GMC	C2500 Suburban		N/A
1993	GMC	C3500		N/A	w/Dual Rear Wheels (DRW)
1993	GMC	Jimmy		N/A
1993	GMC	K1500 Suburban		N/A
1993	GMC	K2500 Suburban		N/A
1993	GMC	K3500		N/A	w/Dual Rear Wheels (DRW)
1993	GMC	Yukon		N/A
1992	Cadillac	DeVille		N/A	Heavy Duty Brakes
1992	Cadillac	Fleetwood		N/A	Heavy Duty Brakes
1992	Chevrolet	Blazer		N/A
1992	Chevrolet	C1500		N/A
1992	Chevrolet	C1500 Suburban		N/A
1992	Chevrolet	C2500		N/A
1992	Chevrolet	C2500 Suburban		N/A
1992	Chevrolet	C3500		N/A	w/Dual Rear Wheels (DRW)
1992	Chevrolet	K1500		N/A
1992	Chevrolet	K1500 Suburban		N/A
1992	Chevrolet	K2500		N/A
1992	Chevrolet	K2500 Suburban		N/A
1992	Chevrolet	K3500		N/A	w/Dual Rear Wheels (DRW)
1992	GMC	C1500 Suburban		N/A
1992	GMC	C2500		N/A
1992	GMC	C2500 Suburban		N/A
1992	GMC	C3500		N/A	w/Dual Rear Wheels (DRW)
1992	GMC	Jimmy		N/A
1992	GMC	K1500 Suburban		N/A
1992	GMC	K2500 Suburban		N/A
1992	GMC	K3500		N/A	w/Dual Rear Wheels (DRW)
1992	GMC	Yukon		N/A
1991	Cadillac	DeVille		N/A	Heavy Duty Brakes
1991	Cadillac	Fleetwood		N/A	Heavy Duty Brakes
1991	Chevrolet	C1500		N/A
1991	Chevrolet	C2500		N/A
1991	Chevrolet	C3500		N/A
1991	Chevrolet	K1500		N/A
1991	Chevrolet	K2500		N/A
1991	Chevrolet	K3500		N/A
1991	GMC	C2500		N/A
1991	GMC	C3500		N/A
1991	GMC	K3500		N/A
1990	Buick	LeSabre		N/A
1990	Buick	Reatta		N/A
1990	Buick	Riviera		N/A
1990	Cadillac	DeVille		N/A
1990	Cadillac	Eldorado		N/A
1990	Cadillac	Fleetwood	FWD	N/A
1990	Cadillac	Seville		N/A
1990	Chevrolet	C1500		N/A
1990	Chevrolet	C2500		N/A
1990	Chevrolet	C3500		N/A
1990	Chevrolet	K1500		N/A
1990	Chevrolet	K2500		N/A
1990	Chevrolet	K3500		N/A
1990	GMC	C2500		N/A
1990	GMC	C3500		N/A
1990	GMC	K3500		N/A
1990	Oldsmobile	98		N/A
1990	Oldsmobile	Delta 88		N/A
1990	Oldsmobile	Toronado		N/A
1990	Pontiac	Bonneville		N/A
1989	Buick	LeSabre		N/A
1989	Buick	Reatta		N/A
1989	Buick	Riviera		N/A
1989	Cadillac	DeVille		N/A
1989	Cadillac	Eldorado		N/A
1989	Cadillac	Fleetwood	FWD	N/A
1989	Cadillac	Seville		N/A
1989	Chevrolet	C1500		N/A
1989	Chevrolet	C2500		N/A
1989	Chevrolet	C3500		N/A
1989	Chevrolet	K1500		N/A
1989	Chevrolet	K2500		N/A
1989	Chevrolet	K3500		N/A
1989	GMC	C1500		N/A
1989	GMC	C2500		N/A
1989	GMC	C3500		N/A
1989	GMC	K1500		N/A
1989	GMC	K2500		N/A
1989	GMC	K3500		N/A
1989	Oldsmobile	98		N/A
1989	Oldsmobile	Delta 88		N/A
1989	Oldsmobile	Toronado		N/A
1989	Pontiac	Bonneville		N/A
1988	Buick	LeSabre		N/A
1988	Buick	Reatta		N/A
1988	Buick	Riviera		N/A
1988	Cadillac	DeVille		N/A
1988	Cadillac	Eldorado		N/A
1988	Cadillac	Fleetwood	FWD	N/A
1988	Cadillac	Seville		N/A
1988	Chevrolet	C1500		N/A
1988	Chevrolet	C2500		N/A
1988	Chevrolet	C3500		N/A
1988	Chevrolet	K1500		N/A
1988	Chevrolet	K2500		N/A
1988	Chevrolet	K3500		N/A
1988	GMC	C1500		N/A
1988	GMC	C2500		N/A
1988	GMC	C3500		N/A
1988	GMC	K1500		N/A
1988	GMC	K2500		N/A
1988	GMC	K3500		N/A
1988	Oldsmobile	98		N/A
1988	Oldsmobile	Delta 88		N/A
1988	Oldsmobile	Toronado		N/A
1988	Pontiac	Bonneville		N/A
1987	Buick	LeSabre		N/A
1987	Buick	Riviera		N/A
1987	Cadillac	DeVille		N/A
1987	Cadillac	Eldorado		N/A
1987	Cadillac	Fleetwood	FWD	N/A
1987	Cadillac	Seville		N/A
1987	Oldsmobile	98		N/A
1987	Oldsmobile	Delta 88		N/A
1987	Oldsmobile	Toronado		N/A
1987	Pontiac	Bonneville		N/A
1986	Buick	Century		N/A
1986	Buick	LeSabre		N/A
1986	Buick	Riviera		N/A
1986	Buick	Skyhawk		N/A
1986	Buick	Skylark		N/A
1986	Cadillac	Cimarron		N/A
1986	Cadillac	DeVille		N/A
1986	Cadillac	Eldorado		N/A
1986	Cadillac	Fleetwood	FWD	N/A
1986	Cadillac	Seville		N/A
1986	Chevrolet	Cavalier		N/A
1986	Chevrolet	Celebrity		N/A
1986	Oldsmobile	98		N/A
1986	Oldsmobile	Calais		N/A
1986	Oldsmobile	Cutlass Ciera		N/A
1986	Oldsmobile	Delta 88		N/A
1986	Oldsmobile	Firenza		N/A
1986	Oldsmobile	Toronado		N/A
1986	Pontiac	6000		N/A
1986	Pontiac	Grand Am		N/A
1986	Pontiac	Sunbird		N/A
1985	Buick	Century		N/A
1985	Buick	Skyhawk		N/A
1985	Buick	Skylark		N/A
1985	Cadillac	Cimarron		N/A
1985	Cadillac	DeVille		N/A
1985	Cadillac	Fleetwood	FWD	N/A
1985	Chevrolet	Cavalier		N/A
1985	Chevrolet	Celebrity		N/A
1985	Oldsmobile	98		N/A
1985	Oldsmobile	Calais		N/A
1985	Oldsmobile	Cutlass Ciera		N/A
1985	Oldsmobile	Firenza		N/A
1985	Pontiac	6000		N/A
1985	Pontiac	Grand Am		N/A
1985	Pontiac	J2000 Sunbird		N/A
1984	Buick	Century		N/A
1984	Buick	Skyhawk		N/A
1984	Buick	Skylark		N/A
1984	Cadillac	Cimarron		N/A
1984	Chevrolet	Cavalier		N/A
1984	Chevrolet	Celebrity		N/A
1984	Oldsmobile	Cutlass Ciera		N/A
1984	Oldsmobile	Firenza		N/A
1984	Oldsmobile	Omega		N/A
1984	Pontiac	6000		N/A
1984	Pontiac	J2000 Sunbird		N/A
1984	Pontiac	Phoenix		N/A
1983	Buick	Century		N/A
1983	Buick	Skyhawk		N/A
1983	Buick	Skylark		N/A
1983	Cadillac	Cimarron		N/A
1983	Chevrolet	Cavalier		N/A
1983	Chevrolet	Celebrity		N/A
1983	Oldsmobile	Cutlass Ciera		N/A
1983	Oldsmobile	Firenza		N/A
1983	Oldsmobile	Omega		N/A
1983	Pontiac	6000		N/A
1983	Pontiac	J2000		N/A
1983	Pontiac	Phoenix		N/A
1982	Buick	Century		N/A
1982	Buick	Skyhawk		N/A
1982	Buick	Skylark		N/A
1982	Cadillac	Cimarron		N/A
1982	Chevrolet	Cavalier		N/A
1982	Chevrolet	Celebrity		N/A
1982	Oldsmobile	Cutlass Ciera		N/A
1982	Oldsmobile	Firenza		N/A
1982	Oldsmobile	Omega		N/A
1982	Pontiac	6000		N/A
1982	Pontiac	J2000		N/A
1982	Pontiac	Phoenix		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:

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