Gates K120858HD Serpentine Belt 86.38 In. 1.65 In. engine tool
Heavy-duty automotive V-belt measuring 86.38 inches long by 1.65 inches wide
- Product colorGreen
- Heavy-duty construction withstands demanding engine loads
- 38-inch outside length fits specific routing paths
- 65-inch top width matches pulley groove profile
- Gates brand trusted for automotive belt reliability
- Industry number 120858 simplifies cross-reference ordering
Serpentine Belt 86.38 In.
The Gates K120858HD is a heavy-duty automotive V-belt built for engine accessory drives. It measures 86.38 inches in outside length and 1.65 inches in top width. The green belt carries industry number K120858HD and is supplied new.
Mechanics replacing worn serpentine belts
This belt suits technicians and DIYers servicing vehicles that require the exact 86.38-inch length and 1.65-inch width. It is not for buyers needing a different length, width or rib profile. It is also not for applications specifying a standard-duty construction.
Proposition 65 notice included
The product documentation states the belt contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. No installation hardware, tensioner tools or additional accessories are bundled with the belt.
How it compares
Measured against everything we stock in Engine Service & Diagnostic Tools, at today’s prices. Recalculated every night.
- Price $71.99
- Pricier than about 85% of the 1,113 comparable items (median $19.99).
Specifications
| Product | |
|---|---|
| Brand name | GATES |
| Product color | Green |
Questions about this item
Which pulleys and tensioners must already be on the engine for this 86.38 in. serpentine belt to fit?
The belt requires pulleys and a tensioner spaced for an 86.38 in. outside length and a 1.65 in. top width.
Will this heavy-duty belt run on the original pulleys of an older engine that previously used a standard belt?
Yes, if the original pulleys match the 86.38 in. length and 1.65 in. width; the heavy-duty construction does not change the routing.
How can I confirm the K120858HD belt is seated correctly after installation?
Verify the ribs sit fully in each pulley groove, the belt tracks centrally, and tension feels firm when pressed mid-span.
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