Availability
BUICK RIVIERA Exhaust
Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 4.8, 5.3L, Each
Part Number: APH-2539
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Catalytic Converter, Universal, 2.5 Inlet, 2.5 in. Outlet, Slip Fit, Stainless Steel, Ceramic Honeycomb, Each
Part Number: APH-608226
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Exhaust Insulator, Replacement, Rubber, Natural, Buick, Cadillac, Chevy, Jeep, Oldsmobile, Pontiac, Each
Part Number: WLK-35719
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Catalytic Converter, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, 21.50 in. Length, 5.0, 5.7, 6.6L, Each
Part Number: MPE-93431
Estimated Ship Date: Mar 3, 2026 if ordered today
Estimated Ship Date: Mar 3, 2026 if ordered today
Muffler, SoundFX Series, Steel, Aluminized, 2.00 in. Inlet/2.125 in. Outlet O.D., Each
Part Number: WLK-17852
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Exhaust Manifold, Front, Cast Iron, Natural, Buick, Chevy, Oldsmobile, Pontiac, 3.8L, Each
Part Number: RNB-674-540
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Catalytic Converter, Stainless Steel, Universal, 2.282 in. Inlet/2.420 in. Outlet, 13.5 in. Length, Each
Part Number: WLK-15037
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Catalytic Converters, AP Exhaust Direct-Fit Catalytic Converters, Slip Fit, 2.50 in. Diameter Inlet/Outlet, Stainless Steel, Each
Part Number: APH-840006
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Catalytic Converter, Stainless Steel, Universal, 2 in. Inlet/Outlet, 16.5 in. Length, Each
Part Number: CTO-2539
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 2026 if ordered today
Muffler, 2.00 in. Offset Inlet, 2.00 in. Offset Outlet, 23.00 in. Overall Length, Oval, Reversible, Steel, Natural, Universal, Each
Part Number: BRE-100-1780
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Catalytic Converter, Stainless Steel, Buick, Oldsmobile, Pontiac, 37.375 in. Length, 3.8L, Each
Part Number: MPE-23422
Estimated Ship Date: Mar 3, 2026 if ordered today
Estimated Ship Date: Mar 3, 2026 if ordered today
Catalytic Converter, Stainless Steel, Buick, Chevy, GMC, Oldsmobile, Pontiac, 20.5 in. Length, L4, V6, V8
Part Number: MPE-23419
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Muffler, SoundFX Series, Steel, Aluminized, 2.50 in. Inlet/2.25 in. Outlet, Each
Part Number: WLK-17855
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Catalytic Converter, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, 21.375 in., 3.8, 4.3, 4.9, 5.0, 5.7L
Part Number: MPE-93418
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Intermediate Pipe, Exhaust, Front Pipe, Steel, Aluminized, Buick, Pontiac, Each
Part Number: WLK-52270
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Manifold Bolt and Spring, 3/8-16 x 1-3/4, Kit
Part Number: RNB-03137
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Catalytic Converter, Stainless Steel, Universal, 2.5 in. Inlet/Outlet, Each
Part Number: WLK-15042
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Exhaust Pipe, Intermediate Pipe, Steel, Aluminized, 2.25 in. O.D., Buick, Cadillac, Oldsmobile, Each
Part Number: WLK-44703
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Exhaust Manifolds, Cast Iron, Natural, Front, Left, Buick, Chevrolet, Oldsmobile, Pontiac, Each
Part Number: ATP-101273
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 2026 if ordered today
Muffler, Challenge, Steel, Aluminized, Buick, Cadillac, Oldsmobile, Each
Part Number: APH-3035
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Resonator, Aluminized, Steel, Each
Part Number: WLK-21992
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Exhaust Pipe, Tailpipe, Steel, Aluminized, Each
Part Number: WLK-46468
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Muffler, SoundFX, 2 1/4in. Inlet/3 in. Outlet, Steel, Aluminized, Pontiac, 6000, Each
Part Number: WLK-18235
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Exhaust Manifold Bolt, Steel, Natural, Buick, Chrysler, Dodge, Oldsmobile, Plymouth, Pontiac, Each
Part Number: APH-4975
Not Yet Reviewed
Estimated Ship Date: Mar 5, 2026 if ordered today
Estimated Ship Date: Mar 5, 2026 if ordered today
Catalytic Converter, California Grade CARB Compliant Universal Catalytic Converter, Stainless Steel, Audi, Volvo, Each
Part Number: MPE-3322306
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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