Details

• Brand:

  

• SKU:

  12735535

• Positions: Lower
• Description:

  🔧 GM Part #12735535 — what it is

  ACDelco / GM 12735535 Lower Intake Manifold Gasket

  • Official name: Lower Intake Manifold Gasket
  • Also listed as: GASKET–LWR INT MANIF
  • Type: OEM GM / ACDelco
  • Location: Between the lower intake manifold and cylinder head

  ⚙️ What it does

  This gasket seals the intake system where air enters the engine:

  • Keeps air + fuel mixture properly sealed
  • Prevents:
    • Vacuum leaks
    • Coolant leaks (on some designs)
    • Rough running / misfires

  👉 Basically, it ensures the engine gets the correct air/fuel mixture without leaks.

  🚗 Common fitment

  Primarily used on GM V6 engines (3.0L & 3.6L):

  • Buick Enclave / LaCrosse
  • Cadillac ATS / CTS / SRX
  • Chevrolet Camaro / Impala / Equinox
  • GMC Terrain / Canyon

  Covers a wide range of ~2010–2024 GM vehicles

  🔁 Replaces

  • 12609163
  • 12673301

  ⚠️ Common symptoms of failure

  • Rough idle or misfire
  • Lean codes (P0171 / P0174)
  • Coolant or vacuum leaks
  • Whistling / hissing noise

  🔧 Replacement notes

  • Intake manifold removal required
  • Often replaced along with:
    • Upper intake gaskets
    • Throttle body gasket
  • Torque sequence is critical to avoid future leaks

  👍 Bottom line

  • 12735535 = lower intake manifold gasket (3.0L / 3.6L GM V6)
  • Seals intake system → critical for engine performance and drivability
  • Common maintenance item during intake or top-end work

  If you want, tell me your exact vehicle (year + engine) and I’ll confirm:

  • if this is the right gasket
  • and whether you need a full gasket set vs just this one 👍

  
  

  # Product Description

  Genuine GM OEM Gasket MPN 12735535 is a factory-original component engineered to provide reliable sealing performance across select GM vehicles. This precision-manufactured gasket prevents fluid leakage and maintains proper engine compression in critical sealing applications. When you choose this authentic General Motors part, you're ensuring OEM quality and guaranteed fitment for your vehicle's specific requirements.

  - Gasket component designed for fluid containment and compression sealing in GM engine assemblies
  - Genuine OEM part manufactured to exact General Motors factory specifications and standards
  - Engineered to prevent leakage and maintain optimal engine performance and efficiency
  - Compatible with select GM vehicles—verify fitment with your vehicle's year, make, and model for confirmation
  - Factory-original condition gasket backed by genuine GM manufacturing quality and reliability

• Notes: Included with adapter.
• Replaces:

  12609163, 12673301

WARNING: California Proposition 65

×

California Proposition 65

WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov