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3261643 Fuel Water for CAT 12M 3, 12M 3 AWD, 140M 2 & more

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  • New 1R0771 (3261643) Fuel Water Separator Filter Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$41.04

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4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
3261643CTP
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Description for 3261643 Fuel Water

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This aftermarket Caterpillar 3261643 Fuel Water is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Fuel Water.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 3261643 Fuel Water

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Replacement Part Number(s): 326-1643
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 3.00
Condition: New

Compatible Models for 3261643 Fuel Water

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This 3261643 Fuel Water is compatible with the following models:
12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 2864C, 320D, 320D FM, 320D GC, 323D L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 345D & more...

Exact Fit Guarantee for 3261643 Fuel Water

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Looking for a reliable replacement Caterpillar 3261643 Fuel Water ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
More Information
Models 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 2864C, 320D, 320D FM, 320D GC, 323D L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 345D
Dimensions 4.72x4.72x10.24
Customer Reviews
  1. Ruslan Zadyrka (Colorado, USA)
    100%
    They are great !
  2. Nathan Peterson (California, USA)
    100%
    rapid response!
  3. Jose Velasquez-Garrido (Michigan, USA)
    100%
    Great customer service
    Anthony was very professional and on top of what needed to be done to get my order verified and moving forward.
  4. Gary (Texas, USA)
    100%
    Great Customer Service!
    Had some difficulties with the website. Contacted customer service. Once I communicated the issues I was having Steven worked through getting my order processed and making sure I got my receipt and all issues resolved. Perfect!
  5. Susan
    100%
    Very knowledgeable and quick to quote parts.
    Very quick to respond to parts quotes. Knowledgeable and Polite, and very quick shipping. Definitely will purchase parts from these guys in the future.
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Frequently Asked Questions

Product

What is the function of the 3261643 Fuel Water Separator Filter?

The 3261643 Fuel Water Separator Filter removes water, dirt, and other contaminants from the fuel system. This helps maintain fuel purity, protects injectors, and ensures smoother engine performance.

How to install this 3261643 fuel water separator filter?

Please follow the instructions below to install
1. Begin by shutting off the engine and allowing it to cool 
2. Locate the existing fuel filter and carefully remove it to prevent spillage 
3. Clean the mounting area 
4. Apply a small amount of clean fuel to the new filter’s gasket, and hand-tighten it into place. After installation, prime the system if required and check for any leaks once the engine is restarted. 
Always refer to your equipment’s service manual for precise instructions.

Which equipment models are compatible with this 3261643 filter?

This filter fits several models such as 12M 2, 140M 3, 160M 2, 2864C, 320D, 336E, 336F L, and more. Checking your part number or equipment model before purchase ensures proper compatibility. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.

When should the fuel water separator be replaced?

It’s best to replace this filter during scheduled maintenance or when you notice water accumulation, reduced engine power, or inconsistent fuel delivery. Regular replacement helps prevent fuel system damage.

Does this 3261643 filter meet equipment performance standards?

Yes, this filter is designed to OEM specifications, offering reliable separation efficiency and long-lasting performance even under demanding conditions.

What are the signs that this 3261643 filter needs replacement?

If you notice any of the following: Rough idling Slow acceleration Visible water in the fuel bowl It’s a clear sign the filter may need replacement.

Can I install this 3261643 fuel water separator myself?

Yes, it can be installed with standard tools and basic mechanical knowledge. However, professional assistance is recommended if you’re unfamiliar with fuel system maintenance.
Questions About This Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

This 3261643 Fuel Water is compatible with the following models:
12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 2864C, 320D, 320D FM, 320D GC, 323D L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 345D & more...

Easy Returns

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Warranty 

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.

Same Day Shipping

Orders placed weekdays, by 3pm ET, ship out same day.

United States & Canada

Click Check Delivery Times for discounted Ground, 2-Day & Overnight rates

International Shipping

We have served customers in over 90 countries. Click Check Delivery Time .

Tracking Number

Tracking will be emailed within 24-48 hours of your order.

QUALITY GUARANTEED

1 YEAR UNLIMITED WARRANTY

SAME DAY SHIPPING

ORDER BY 3PM EST. EXCL. WEEKEND

PRICE GUARANTEED

NO CORE OR EXCHANGE CHARGES

NO HASSLE RETURNS

EASY RETURNS & FAST REFUNDS

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4.8 Rating. Excellent
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