2003 BUICK PARK AVENUE Exhaust

Muffler U-Clamp, Exhaust Clamp, Heavy Duty, 2.5 in. Steel, Each

Part Number: WLK-35337

4.85 out of 5 stars ( 26 )

Estimated Ship Date: Tomorrow

Catalytic Converter, Universal, 3-Way Style, Stainless Steel, Each

Part Number: MPE-51209

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Muffler U-Clamp "Heavy Duty" 2.25" Size 3/8" Thick 11 Gauge Saddles

Part Number: WLK-35336

4.84 out of 5 stars ( 19 )

Estimated Ship Date: Tomorrow

Spark Plug Boot Protector, Heat Shield, 500 degrees F, Snap-on, Buick, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: ADO-8006

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

Catalytic Converter, Heavy Metal, Stainless Steel, Each

Part Number: MPE-99209HM

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Exhaust Clamps, Extra Heavy-Duty U-Clamps, U-bolt Clamp Style, 0.500 in. Clamp Width, 2.750 in. Pipe Diameter, Steel, BMW, Chevy, Chrysler, Ford, Each

Part Number: APH-H234

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Exhaust Flange Studs, Steel, Black Oxide, M10-1.5 x 62mm, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: RNB-03142

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Catalytic Converters, Universal, Single 3.00 in. Slip-fit Inlet/Outlet, AIR Tube, Stainless Steel Case, 16.50 in. Overall Length, Chevy, GMC, Each

Part Number: APH-608227

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Estimated Ship Date: Tomorrow

Exhaust Clamps, Extra Heavy-Duty U-Clamps, U-bolt Clamp Style, 0.500 in. Clamp Width, 2.625 in. Pipe Diameter, Steel, Natural, Ram, 3.6L, Each

Part Number: APH-H258

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Estimated Ship Date: Tomorrow

Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 33.25 in. Overall Length, Buick, Pontiac, Each

Part Number: WLK-18945

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Catalytic Converter, Stainless Steel, Buick, Pontiac, 3.8L, Front, Each

Part Number: MPE-51333

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Buick, Pontiac, Passenger Car, 3.8L, Each

Part Number: MPE-24204

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Catalytic Converter, Stainless Steel Case, Buick, Pontiac, Each

Part Number: WLK-16386

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 22, 2026 if ordered today

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A.I.R. Pump, Electric, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-306-010

4.0 out of 5 stars ( 1 )

Estimated Ship Date: May 14, 2026 if ordered today

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Resonator, Steel, Natural, Buick, Pontiac, 3.8L, Each

Part Number: WLK-48327

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Estimated Ship Date: May 22, 2026 if ordered today

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• Oversize $46.99
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Exhaust Manifolds, Cast Iron, Natural, Front, Left, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: ATP-101273

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Estimated Ship Date: May 8, 2026 if ordered today

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Muffler, OE Replacement, Steel, Aluminized, Buick, Oldsmobile, Each

Part Number: APH-2140

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Stock Flange Inlet, 2.58 in. Slip Fit Outlet, 20.00 in. Overall Length, Buick, Cadillac, Pontiac, Each

Part Number: APH-645288

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Catalytic Converter - Direct Fit

Part Number: CTO-9988

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Estimated Ship Date: May 12, 2026 if ordered today

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AIR Check Valve, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: RNB-911-004

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Estimated Ship Date: May 13, 2026 if ordered today

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Muffler, OE Replacement, Steel, Aluminized, Buick, Each

Part Number: APH-2245

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Estimated Ship Date: May 12, 2026 if ordered today

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MANIFOLD PRESSURE SENSOR

Part Number: HLN-2MAP0078

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Stainless Case, Stock Flange Inlet, 2.125 in. Outlet, 64.75 in. Overall Length, Buick, Cadillac, Olds, Pontiac, Each

Part Number: APH-645979

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Catalytic Converters, Catalytic Converter - Universal, OBDII Select Plus

Part Number: APH-608737

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Estimated Ship Date: May 11, 2026 if ordered today

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Muffler, Quiet-Flow 3, Oval, Steel, Aluminized, Buick, Pontiac, Each

Part Number: WLK-53315

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Estimated Ship Date: May 22, 2026 if ordered today

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