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V-Belt Guys
METRIC STANDARD 381SU991 Replacement Synchronous Timing Belt
METRIC STANDARD 381SU991 Replacement Synchronous Timing Belt
This belt replaces these part numbers
- 381SU991
- 101670-381SU991-390H150
Size 1.5" × 39" · Belt section 390H
Regular price
$ 17.50 USD
Regular price
$ 21.55 USD
Sale price
$ 17.50 USD
Shipping calculated at checkout.
Quantity
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100% satisfaction guarantee - return for a full refund or exchange, no restocking fee. See return policy
$6.99 flat-rate U.S. shipping - one low price no matter how many belts.
Real human help - questions on fitment? A real person is a call or email away.
The 381SU991 is a wrapped replacement V-belt from V-Belt Guys, a direct replacement for Metric Standard 381SU991. It meets or exceeds OEM specifications and all published USA RMA rating levels.
| Replaces | 381SU991, 101670-381SU991-390H150 |
| Size (Top Width x OC) | 1.5" x 39" |
| Belt Section | OE Replacement |
| Material / Type | Neoprene, fiberglass cord |
| Tooth Profile | Classic trapezoidal |
| SKU | 390H150 |
| Tooth count | 78 |
OEM Part Numbers are for Reference Use Only.
Fast shipping on quality V-Belt Guys replacement belts. Order today.
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