1991 Oldsmobile Cutlass Calais

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses OE oil filter 12737092. Note the factory fuel filter is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

OE service part numbers OEM · verified

Engine oil filter	12737092 alt 25012305
Engine air filter	24577608 alt 25040881
Fuel filter	25171792 discontinued
Spark plug	05614046 alt 19362247
Front wiper blades	10093142
Serpentine belt	11502374 alt 24572563
Thermostat	10207373 alt 22545290

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length	178.7 in
Overall width	66.5 in
Overall height	52.4 in
Wheelbase	103.5 in
Curb weight	2584 lb
Weight distribution (front / rear)	65/35

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine DOT 3 brake fluid.

Lubricants & capacities

Brake Fluid	DOT 3
Engine Coolant	ETHYLENE GLYCOL
Power Steering Fluid	USE GM PART NO. 1052884 OR EQUIVALENT

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 7,500 mi; coolant every 30,000 mi. The big-interval services (every 30,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

At 7,500 mi	Engine Oil Filter (replace) · Throttle Body (torque) · Tire & Wheel Assembly (rotate)
Every 7,500 mi	Axle Shaft Oil Seal (inspect) · Body Latches, Locks & Hinges (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Oil (drain & refill) · Exhaust System (Complete) (inspect)
Every 15,000 mi	Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 30,000 mi	Accessory Drive Belt (inspect) · EGR System (inspect) · Engine Air Filter Element (replace) · Engine Breather Filter (replace) · Engine Coolant System (drain, flush & refill) · Fuel Line (inspect)
Every 100,000 mi	Transmission Fluid & Filter (replace)