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.

Caterpillar 1r1808 Oil Filter 1 Pack | Desertcart South Korea

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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₩315370

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

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Description

⚙️ Filter like a pro, drive like a boss.

TRUSTED BY EXPERTS - Rated 4.8/5 by 322 users—join the elite group optimizing their vehicle’s performance.
UNIVERSAL COMPATIBILITY - Cross-references Fleetguard LF691A, LF3566, LF9691A for seamless fit across multiple models.
ROBUST STEEL CONSTRUCTION - Durable material built to withstand high pressure and harsh conditions.
EFFORTLESS SPIN ON INSTALLATION - Quick, tool-free setup designed for busy professionals who value efficiency.
PRECISION ENGINEERED FILTRATION - Genuine Caterpillar part ensures peak engine protection and longevity.

The Caterpillar 1R1808 Oil Filter is a genuine, high-efficiency spin-on filter with a 135.8 mm diameter, engineered from durable steel. Compatible with multiple Fleetguard models, it offers reliable engine protection and easy installation, backed by a 4.8-star rating from over 300 satisfied users.

Specifications

ASIN	B008N0IRT0
Automotive Fit Type	Vehicle Specific Fit
Brand	CAT
Brand Name	CAT
Compatible with Vehicle Type	Car
Customer Reviews	4.8 out of 5 stars 324 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
Outside diameter	5.35 Inches
Part Interchange Info	Cross References: Fleetguard LF691A, LF3566, LF9691A
Product Grade	Like New
Product grade	Like New
Thread Size	3/4" NPT
Thread size	3/4" NPT
Unit Count	1.0 count
Vehicle service type	Car

Reviews

S**.

Nicht zu empfehlen

Der Ölfilter ist direkt beim ersten Start geplatzt, nicht zu empfehlen.

6.03.2026

E**.

Good product

Great product

25.04.2024

L**S

Filters For Your Caterpillar Motor.

What can I say? If you are running a Cat engine use Cat filters, end of story, the best filters for your Cat motor, don't go cheap on filters.

13.05.2026

A**R

Nothing like a Genuine Cat oil filter!

Awesome filter although cheaper at my truck parts suppliers.

1.01.2024

D**R

OEM product

I use only CAT filters on my Caterpillar engine. I figured they couldn’t wiggle out of a warranty claim if I use their parts.

24.09.2025

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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2 months ago

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₩315370

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago