The 1R-1808 is widely used across a broad range of heavy-duty Caterpillar diesel engines, most notably:Cat C9 (Industrial, Marine, and On-Highway) Cat C15, C16, C18, and 3406E Cat 3126 and 3304
Product Detail
Caterpillar Spin-on Oil Filter Canister 1R-1808 275-2604 3I-0731
Reference price only. Final pricing depends on quantity, packaging, destination, and trade terms.
Send model or photo
Share the current number or product image.
Verify fitment
We check specifications and application.
Confirm the quote
Agree sample, packaging, lead time and price.

Buyer decision support
Cross-reference check
Treat LF9691A, B7299, P551808, and 57792 as reference numbers, then confirm dimensions, sealing, thread, flow direction, and service interval before replacement.
OEM and private-label supply
For 1R-1808, Precise can discuss samples, stable production, packaging, labeling, and OEM/private-label requirements from MOQ 150 pieces.
Information to send
Send the current part number, product photos, dimensions or drawings, Dimensions, Weight, Filtration Efficiency, and Replacement Interval, quantity, destination market, and packaging request to speed up verification.
Technical Specifications
| Parameter | Value |
|---|---|
| Dimensions | H: 302.5mm OD: 135.5mm Thread: 1 1/2-16 U |
| Weight | 2.27 kg |
| Filtration Efficiency | 99 ( 24 micron)% |
| Replacement Interval | 60,000 km |
| Filter Media Brand | H&V; Ahlstrom |
| Packaging | Moisture-proof bag+Cardboard box |
Frequently asked questions
- What is the Precise 1R-1808 Oil Filter?
- Precise 1R-1808 is a heavy-duty Oil Filter engineered to OEM-quality standards as a direct replacement. It is built to match the original dimensions, fit and filtration performance for a no-modification interchange.
- What does Precise 1R-1808 cross-reference to?
- Precise 1R-1808 cross-references to LF9691A, B7299, P551808, and 57792, among others. Send us any reference number and we will confirm the exact match.
- What are the specifications of Precise 1R-1808?
- Key specifications of Precise 1R-1808: Dimensions: H: 302.5mm OD: 135.5mm Thread: 1 1/2-16 U, Weight: 2.27 kg, Filtration Efficiency: 99 ( 24 micron)%, Replacement Interval: 60,000 km, Filter Media Brand: H&V; Ahlstrom. Always confirm these against your machine and operating conditions before ordering.
- What is the minimum order quantity and lead time for Precise 1R-1808?
- Precise 1R-1808 ships at a minimum order quantity of 150 pieces, with distributor and fleet pricing and lead time on request. Contact us with the part number for a quote.
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