Standard Ignition OCK135 Engine Oil Cooler

Engine Oil Cooler for GM Applications

Standard Ignition OCK135 is a bolt-on engine oil cooler built for direct replacement service on select Cadillac, Chevrolet, and GMC vehicles. It is listed for 2019-2024 Cadillac CT6, CT4, CT5, XT4, XT5, and XT6, plus 2020-2024 Chevrolet Blazer and 2020-2023 GMC Acadia applications.

Key Features

• Bolt-on attachment method for straightforward replacement
• Engine oil cooler for managing oil temperature in supported vehicles
• Direct-fit coverage for Cadillac CT4, CT5, XT4, XT5, XT6, CT6, Chevrolet Blazer, and GMC Acadia applications
• Standard Ignition OCK135 cross-references 800-98133 and OIL272 for the same application
• Product may differ in appearance and finish, but fit and function remain the same

Detailed Description

Standard Ignition OCK135 is an engine oil cooler intended for vehicles that use a bolt-on cooler assembly in the factory location. It is listed across multiple GM platforms, including Cadillac CT4, CT5, XT4, XT5, XT6, and CT6, as well as Chevrolet Blazer and GMC Acadia models. If you are replacing a worn or leaking oil cooler on a Cadillac XT5 or Chevrolet Blazer, this part number provides a fitment-focused replacement option.

This part cross-references 800-98133 and OIL272 for the same application. Standard Ignition OCK135 is also identified under interchange part numbers 55486915 and DC136.

What It Helps Address

• Oil cooler leakage at the factory mounting point
• Loss of oil temperature control from a damaged cooler
• Replacement needs after corrosion or physical damage
• Service issues on GM vehicles with a bolt-on engine oil cooler
• Fitment matching for Cadillac CT4, CT5, XT4, XT5, XT6, and Chevrolet Blazer applications

Installation Notes and Tips

Install using the original bolt-on mounting location and verify all sealing surfaces are clean before assembly. Gaskets, O-rings, hardware, and solenoids are not included, so confirm the required service parts for your vehicle before installation. Because appearance and finish may vary, compare the new cooler to the original unit before final fitment on Cadillac XT4, Cadillac XT6, or GMC Acadia applications.

Quality Assurance

Standard Ignition supplies replacement components for OE-style service applications, and OCK135 is cataloged for direct fitment across the listed GM vehicles. Confirm year, model, and engine-specific application details before ordering.