Dayco 5040940 serpentine belt for the 1988-1989 Chevrolet C1500 V6 4.3L, V8 5.0L or 5.7L and other vehicles carries engine power from the crankshaft to the belt-driven accessories. It runs in the main drive position.
- Aramid-reinforced EPDM construction
- K-section cross section with straight ribs and standard rib depth
- Operating temperature from -45 F to 212 F (-42.7 C to 100 C)
- Standards: SAE J1459 and SAE J2432
Quick facts
- Part: Dayco 5040940 serpentine belt
- Fits: the 1988-1989 Chevrolet C1500 V6 4.3L, V8 5.0L or 5.7L and other vehicles
- Position: Main drive
- Material: EPDM, Aramid Reinforced
- Condition: New
A worn belt can show cracked or glazed ribs, a squeal or chirp from the engine bay, or accessories that run slowly. A weak tensioner, a misaligned pulley or a seized accessory can be behind these signs too, so find the cause before buying a belt. One belt runs the main drive on each of these vehicles.
Fits
The 1988-1989 Chevrolet C1500, the 1988-1989 Chevrolet K1500 and the 1987-1991 Chevrolet G10, each with V6 4.3L, V8 5.0L or 5.7L engines, take this belt, and so do many other vehicles. If your truck or van is not named here, look up its year, model and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Main drive
- Quantity per vehicle: 1
- Cross section: K-Section
- Rib profile: Straight Rib
- Rib depth: Standard
Build and materials
- Material: EPDM, Aramid Reinforced
- Condition: New
Interchange: 25-040940 · 25-72389
4K940 · 4K0940 · 4PK2385 · 4PK2390 · K040940 · 4040940 · PK040940 · 940K4 · 40940
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
4K940, 4K0940, 4PK2385, 4PK2390, K040940, 4040940, PK040940, 940K4, 40940, 25-040940, 25-72389, D1102-7011, 14102102
Frequently Asked Questions
Is this the right K1500 serpentine belt for a 1988-1989 Chevrolet K1500 V6 4.3L, V8 5.0L or 5.7L?
Yes. Dayco 5040940 fits the 1988-1989 Chevrolet K1500 with the V6 4.3L, V8 5.0L or V8 5.7L engine, and each of these trucks takes one belt.
What is this Dayco drive belt made of?
Dayco 5040940 is made of EPDM reinforced with aramid. It is a new belt for the main drive position.
What rib profile does this serpentine belt have?
This serpentine belt has a straight rib profile with a K-section cross section and standard rib depth.
How can I tell this belt is worn before it slips?
With the engine off and cool, look at the ribs for cracks, glazing or fraying, and listen for a squeal or chirp from the engine bay. A shop can check belt tension and pulley alignment.
Is 4K940 the same belt as Dayco 5040940?
Yes. 4K940 is listed as an interchange number for Dayco 5040940, along with 4PK2385 and 25-040940.
