Will this filter fit my 2003 cat 3126e engine in my motor home?

I would say no. It fits the c15 a bigger engine that’s in tractor trailers. Try to get number off current filter

Not a question. Same thread but too wide for Powerstroke without pan modification. (?)

Correct. This filter is not meant for a Powerstroke.

What are the best oil, pre and secondary fuel filters for a 1999 cat 3126, 7.2l in a fl-70 freightliner?

Amzoil has one of the best oil filters and oil filtration systems out there. They remove particles down to 3 microns

Yes, very. Caterpillar makes their own filters and they are very good. I highly recommend them.

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Caterpillar 1R1808 Oil Filter, 1 Pack

Product ID: 25041159

Details

Brand
CAT
Material
Steel
Outside Diameter
5.35 inches
Product Grade
Like New
Vehicle Service Type
Car

📏135.8 mm Diameter Length

🔩Spin-on Installation

🛢️Advanced Efficiency Rating

EC$396

Duties & taxes included

In stock

Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Power your drive with Caterpillar’s precision filtration—because your engine deserves the best.

EFFORTLESS MAINTENANCE - Spin-on design makes oil changes quick and hassle-free—get back on the road faster.
UNIVERSAL COMPATIBILITY - Cross-referenced with Fleetguard LF691A, LF3566, LF9691A for seamless fit across multiple vehicle models.
TRUSTED BY PROFESSIONALS - Rated 4.8 stars by 339 users—join the community that demands reliability.
PRECISION ENGINE PROTECTION - Genuine Caterpillar steel construction ensures durability and peak performance.
OPTIMIZED FILTRATION EFFICIENCY - Advanced efficiency rating captures contaminants to extend engine life and boost performance.

The Caterpillar 1R1808 Oil Filter is a genuine, steel-built spin-on filter designed for car engines, featuring an advanced efficiency rating and a 135.8 mm diameter length. It cross-references Fleetguard models LF691A, LF3566, and LF9691A, ensuring broad compatibility. Highly rated by users, it offers reliable, professional-grade filtration to protect and extend engine life.

Specifications

ASIN	B008N0IRT0
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#32,287 in Automotive ( See Top 100 in Automotive ) #434 in Automotive Replacement Oil Filters
Brand	CAT
Brand Name	CAT
Compatible with Vehicle Type	Car
Customer Reviews	4.8 out of 5 stars 341 Reviews
Included Components	Oil Filter
Item Highlight	Genuine Caterpillar Part
Item Type Name	Oil Filter
Manufacturer	Caterpillar
Manufacturer Part Number	1R1808
Material	Steel
Material Type	Steel
Model Number	1R1808
Number of Items	1
Number of Packs	1
OEM Equivalent Part Number	1R-1880
Outside Diameter	5.35 inches
Part Interchange Info	Cross References: Fleetguard LF691A, LF3566, LF9691A
Product Grade	Like New
Thread Size	3/4" NPT
Unit Count	1 Count
Vehicle Service Type	Car

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EC$396

Duties & taxes included

In stock

Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Saint Vincent and the Grenadines.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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