Walker 18312 Exhaust Muffler - Rear
OE Quality 60-Day Returns
Walker
 SoundFX Direct Fit

Walker 18312 Exhaust Muffler - Rear

Brand Walker 18312
Position Rear
Universal Or Specific Fit Specific
Shape Round
Grade Type Regular
Inlet Inside Diameter 2.25
Body Width 5
Inlet Quantity 1
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 34.25
Body Height 5
Body Length 18
Body Material Steel
Finish Aluminized
Inlet 1 Inside Diameter 2.25
Inlet 1 Type Pipe connection
Inlet Configuration Center
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Outside Diameter 2.75
Outlet 1 Type Tip
Outlet Configuration Center
Outlet Outside Diameter 2.75
Outlet Type Tip
Product line SoundFX Direct Fit
Fits Buick, Cadillac, and Oldsmobile · 106 vehicles

Cross-references TYC 700061 and 700066 for the same application. See all 2.

$87.73Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $87.73
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Exhaust Muffler options
This part fits 106 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
1985BuickRiviera—5.7LV8—N/ASoundFX Direct Fit
1985BuickRiviera—5.0LV8—N/ASoundFX Direct Fit
1985BuickRiviera—3.8LV6—RearSoundFX Direct Fit
1985BuickRiviera—3.8LV6—N/ASoundFX Direct Fit
1985BuickRiviera—5.0LV8—RearSoundFX Direct Fit
1985CadillacEldorado—4.1LV8—RearIf welded assembly, replace all required parts; SoundFX Direct Fit
1985CadillacEldoradoTouring5.7LV8—RearSoundFX Direct Fit
1985CadillacEldoradoBase5.7LV8—RearSoundFX Direct Fit
1985CadillacEldoradoCabriolet5.7LV8—RearSoundFX Direct Fit
1985CadillacSeville—4.1LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1985CadillacSeville—5.7LV8—N/ASoundFX Direct Fit
1985OldsmobileToronado—5.0LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1985OldsmobileToronado—5.7LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1984BuickRiviera—5.7LV8—N/ASoundFX Direct Fit
1984BuickRiviera—5.0LV8—N/ASoundFX Direct Fit
1984BuickRiviera—3.8LV6—RearSoundFX Direct Fit
1984BuickRiviera—3.8LV6—N/ASoundFX Direct Fit
1984BuickRiviera—5.0LV8—RearSoundFX Direct Fit
1984BuickRivieraLuxury4.1LV6—RearSoundFX Direct Fit
1984BuickRivieraBase4.1LV6—N/ASoundFX Direct Fit
1984BuickRivieraLuxury4.1LV6—N/ASoundFX Direct Fit
1984BuickRivieraBase4.1LV6—RearSoundFX Direct Fit
1984CadillacEldorado—4.1LV8—RearIf welded assembly, replace all required parts; SoundFX Direct Fit
1984CadillacEldoradoTouring5.7LV8—RearSoundFX Direct Fit
1984CadillacEldoradoBase5.7LV8—RearSoundFX Direct Fit
1984CadillacEldoradoCabriolet5.7LV8—RearSoundFX Direct Fit
1984CadillacSeville—4.1LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1984CadillacSeville—5.7LV8—N/ASoundFX Direct Fit
1984OldsmobileToronado—5.0LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1984OldsmobileToronado—4.1LV6—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1984OldsmobileToronado—5.7LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1983BuickRiviera—5.7LV8—N/ASoundFX Direct Fit
1983BuickRiviera—3.8LV6—N/ASoundFX Direct Fit
1983BuickRiviera—3.8LV6—RearSoundFX Direct Fit
1983BuickRivieraBase4.1LV6—N/ASoundFX Direct Fit
1983BuickRivieraXX Anniversary Edition4.1LV6—N/ASoundFX Direct Fit
1983BuickRivieraBase5.0LV8—RearSoundFX Direct Fit
1983BuickRivieraXX Anniversary Edition4.1LV6—RearSoundFX Direct Fit
1983BuickRivieraLuxury4.1LV6—N/ASoundFX Direct Fit
1983BuickRivieraBase4.1LV6—RearSoundFX Direct Fit
1983BuickRivieraXX Anniversary Edition5.0LV8—RearSoundFX Direct Fit
1983BuickRivieraXX Anniversary Edition5.0LV8—N/ASoundFX Direct Fit
1983BuickRivieraLuxury4.1LV6—RearSoundFX Direct Fit
1983BuickRivieraLuxury5.0LV8—N/ASoundFX Direct Fit
1983BuickRivieraBase5.0LV8—N/ASoundFX Direct Fit
1983BuickRivieraLuxury5.0LV8—RearSoundFX Direct Fit
1983CadillacEldorado—5.7LV8—RearSoundFX Direct Fit
1983CadillacEldorado—4.1LV8—RearIf welded assembly, replace all required parts; SoundFX Direct Fit
1983CadillacSeville—4.1LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1983CadillacSeville—5.7LV8—N/ASoundFX Direct Fit
1983OldsmobileToronado—5.0LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1983OldsmobileToronado—4.1LV6—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1983OldsmobileToronado—5.7LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1982BuickRiviera—5.7LV8—N/ASoundFX Direct Fit
1982BuickRiviera—3.8LV6—N/ASoundFX Direct Fit
1982BuickRiviera—3.8LV6—RearSoundFX Direct Fit
1982BuickRivieraBase4.1LV6—N/ASoundFX Direct Fit
1982BuickRivieraBase5.0LV8—RearSoundFX Direct Fit
1982BuickRivieraLimited Edition5.0LV8—RearSoundFX Direct Fit
1982BuickRivieraBase4.1LV6—RearSoundFX Direct Fit
1982BuickRivieraBase5.0LV8—N/ASoundFX Direct Fit
1982BuickRivieraLimited Edition4.1LV6—N/ASoundFX Direct Fit
1982BuickRivieraLimited Edition5.0LV8—N/ASoundFX Direct Fit
1982BuickRivieraLimited Edition4.1LV6—RearSoundFX Direct Fit
1982CadillacEldorado—5.7LV8—RearSoundFX Direct Fit
1982CadillacEldorado—4.1LV6—RearSoundFX Direct Fit
1982CadillacEldorado—4.1LV8—RearIf welded assembly, replace all required parts; SoundFX Direct Fit
1982CadillacSeville—4.1LV6—N/ASoundFX Direct Fit
1982CadillacSeville—4.1LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1982CadillacSeville—5.7LV8—N/ASoundFX Direct Fit
1982OldsmobileToronado—5.0LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1982OldsmobileToronado—4.1LV6—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1982OldsmobileToronado—5.7LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1981BuickRiviera—3.8LV6—RearSoundFX Direct Fit
1981BuickRiviera—3.8LV6—N/ASoundFX Direct Fit
1981BuickRiviera—5.7LV8—Rearwithout California Emission System; SoundFX Direct Fit
1981BuickRiviera—4.1LV6—RearSoundFX Direct Fit
1981BuickRiviera—5.7LV8—N/Awithout California Emission System; SoundFX Direct Fit
1981BuickRiviera—5.0LV8—RearSoundFX Direct Fit
1981BuickRiviera—5.0LV8—N/ASoundFX Direct Fit
1981BuickRiviera—4.1LV6—N/ASoundFX Direct Fit
1981CadillacEldorado—5.7LV8—Rearwithout California Emission System; SoundFX Direct Fit
1981CadillacEldorado—6.0LV8—RearIf welded assembly, replace all required parts; SoundFX Direct Fit
1981CadillacEldorado—4.1LV6—RearSoundFX Direct Fit
1981CadillacSeville—4.1LV6—N/ASoundFX Direct Fit
1981CadillacSeville—5.7LV8—N/Awithout California Emission System; SoundFX Direct Fit
1981CadillacSeville—6.0LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1981OldsmobileToronado—5.0LV8—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1981OldsmobileToronado—5.7LV8—N/Awithout California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
1981OldsmobileToronadoBrougham4.1LV6—N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1980BuickRiviera—5.7LV8GASRearSoundFX Direct Fit
1980BuickRiviera—5.7LV8GASN/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1980BuickRiviera—3.8LV6—N/ASoundFX Direct Fit
1980BuickRiviera—3.8LV6—RearSoundFX Direct Fit
1980CadillacEldorado—5.7LV8—RearSoundFX Direct Fit
1980CadillacEldorado—6.0LV8—RearSoundFX Direct Fit
1980CadillacSeville—5.7LV8GASN/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1980CadillacSeville—6.0LV8GASN/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1980OldsmobileToronado—5.7LV8GASN/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1980OldsmobileToronado—5.0LV8GASN/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1979BuickRiviera—5.7LV8—RearSoundFX Direct Fit
1979BuickRiviera—5.7LV8—N/ASoundFX Direct Fit
1979BuickRiviera—3.8LV6—N/ASoundFX Direct Fit
1979BuickRiviera—3.8LV6—RearSoundFX Direct Fit
1979CadillacEldorado—5.7LV8GASRearSoundFX Direct Fit
1979OldsmobileToronado—5.7LV8GASN/AIf welded assembly, replace all required parts; SoundFX Direct Fit
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
TYC — 700061700066