Caterpillar 1R-0751 Fuel Filter 2-Pack | Genuine CAT OEM C7 C9 3126 3116

Caterpillar 1R-0751 Advanced High Efficiency Fuel Filter — Genuine CAT OEM 2-Pack

What You Get

Two (2) genuine Caterpillar 1R-0751 advanced high efficiency fuel filters. Each filter is factory-sealed in original CAT packaging with pre-installed gasket. These are NOT aftermarket reproductions — these are the same genuine Caterpillar fuel filters used at CAT dealer service centers worldwide.

Running multiple machines or a fleet? We also sell the 1R-0751 in a 6-pack for maximum savings per filter.

Why the 1R-0751 Matters

The CAT C7 and C9 are among the most widely used diesel engines in the construction industry — powering everything from 320-class excavators to 950-class wheel loaders. These engines rely on high-pressure fuel injection systems where even microscopic contaminants can erode injector tips and damage fuel pumps. A single CAT C7 or C9 injector replacement costs $600-$1,000 — a full set runs $4,000-$6,000+.

The Caterpillar 1R-0751 is CAT's advanced high efficiency secondary fuel filter for mid-range engines, rated at 2-micron absolute with cellulose media. A 2-pack gives you two service intervals of protection — one working, one on the shelf ready to go.

Specifications

Specification	Detail
Part Number	1R-0751 (also written 1R0751)
Alternate CAT Numbers	1R-0759 (1R0759), 6I-4783 (6I4783) — same filter
Brand	Caterpillar (Genuine OEM)
Filter Type	Advanced High Efficiency, Secondary, Spin-On
Function	Fuel Filter (Secondary Stage)
Efficiency	2-Micron Absolute
Media	Cellulose with acrylic bead support
Outside Diameter	3.374 inches (85.7 mm)
Length	7.252 inches (184.2 mm)
Thread Size	7/8-14 UNS-2B
Flow Direction	Outside-to-Inside
Housing Material	Carbon Steel
Center Tube	Nylon (prevents metal contamination)
End Caps	Molded (prevents leaks)
Weight	Approx. 1.1 lbs (0.5 kg) per filter
Quantity	2 Filters Per Pack

Compatible Caterpillar Engines

Engine Category	Models
C-Series Mid-Range	C6.6, C7, C-9, C9
3000 Series	3046, 3114, 3116, 3126, 3126B, 3126E

These are CAT's most popular mid-range construction and industrial engines — the C7 and C9 alone power more pieces of CAT equipment than any other engine family.

Serial Number Note: Fitment depends on engine serial number and fuel system configuration. Always verify your engine's parts book or contact us with your serial number if unsure.

Compatible Truck & Equipment Applications

Category	Equipment Models
Hydraulic Excavators	311C/D, 312C/D, 314C/D, 315C/D, 318C/D, 319C/D, 320B/C/D/N, 321C/D, 322B/C, 323D, 325B/C/D
Wheeled Excavators	M318, M320, M325B
Wheel Loaders	910E/F, 918F, 924F/G/H, 928F/G/H, 930H, 938F/G/H, 950F/G/H, 960F, 962G/H, 966G/H, 972G/H, 993K
Track-Type Loaders	953B/C/D, 963B/C/D
Track-Type Tractors (Dozers)	D3G, D4G, D5G, D5M, D5N, D5R, D6K, D6M, D6N, D6R, D6T, D7R
Motor Graders	120H/K/M, 12H/K/M, 135H, 140H/K/M, 160H/K/M
Articulated Trucks	D20D, D250D
Asphalt Pavers	AP-900B, AP-1000/B, AP-1050/B, AP-1055B, BG-240C, BG-245C, BG-260C
Vibratory Compactors	CB-634, CP-533/563, CS-531/533/563/573/583
Integrated Toolcarriers	IT12B, IT14F, IT18F, IT24F, IT28F/G, IT38F/G, IT62G
Pipelayers	561M, PL61
Forestry	525B, 535B skidders; 533, 543, 573 feller bunchers; TK370–TK381
Generator Sets	Gen-sets with C7 and C9 engines
Marine	Marine engines with C7 and C9

Own a 320 excavator or 950 loader? A 2-pack covers two filter services — keep one spare on the jobsite so you never have downtime waiting for a filter.

⚠️ 1R-0751 vs 1R-0750 vs 1R-0749: Don't Order the Wrong Filter

All three are genuine CAT advanced high efficiency secondary fuel filters that look similar. The thread size is different — they do NOT interchange:

Feature	1R-0751 (This Filter)	1R-0750	1R-0749
Diameter	3.374"	3.374" (same!)	3.689"
Length	7.252"	7.146" (almost same!)	10.571"
Thread	7/8-14 ⚠️	1-14	1-14
Engines	C6.6, C7, C9, 3116, 3126	C9, C13, C15, 3406E	C7.2 through 3516B
Equipment	320 excavators, 950 loaders, D5/D6 dozers	On-highway trucks, larger equipment	Large equipment, mining, gen-sets

If your machine has a C7 or C9 engine → you likely need THIS filter (1R-0751) If your truck has a C13, C15, or 3406E → you need the 1R-0750 or 1R-0749

Not sure which filter you need? Contact us with your engine serial number — we'll look it up for you.

We sell all three in 6-packs and 2-packs.

Cross-Reference Part Numbers

Brand	Part Number(s)	Notes
Caterpillar	1R-0751, 1R0751	Primary part number
Caterpillar	1R-0759, 1R0759	Alternate CAT number — same filter
Caterpillar	6I-4783, 6I4783	Alternate CAT number — same filter
Baldwin	BF7632, BF7634	Aftermarket equivalents
Baldwin	BF7530MPG	Aftermarket equivalent (multi-pack)
Fleetguard	FF5321	Primary aftermarket cross-ref
Fleetguard	FF5309, FF5324	Additional Fleetguard equivalents
Wix	33377, 33626	Aftermarket equivalents
Luber-Finer	LFF4783	Aftermarket equivalent
NAPA	3377, 3626	Aftermarket equivalents
Fram	P8264, P8451, P8490	Aftermarket equivalents
Hastings	FF1049, FF1076, FF1087	Aftermarket equivalents
Purolator	F65214, F66014	Aftermarket equivalents
Carquest	86377, 86626	Aftermarket equivalents
Hengst	H178WK	Aftermarket equivalent
Sure Filter	SFF0293	Aftermarket equivalent
Woodgate	WGF4783	Aftermarket equivalent
Volvo	85114066	OEM cross-reference
Mack	2191P551315	OEM cross-reference
Atlas Copco	3222310756	OEM cross-reference
AGCO	AG121852	OEM cross-reference
Wirtgen	77338	OEM cross-reference
Mi-Jack	23150003	OEM cross-reference
Taylor	5597098	OEM cross-reference

Why Buy Genuine Caterpillar (Not Aftermarket)?

Feature	Genuine CAT 1R-0751	Aftermarket Copies
Media Quality	Cellulose with acrylic bead support — prevents bunching	Basic media, bunching creates unfiltered bypass
Pleat Stability	Spiral roving holds pleats under pressure and vibration	Pleats may collapse at high flow rates
Center Tube	Nylon — zero metal contamination in fuel	Often metal — risk of fuel contamination
End Caps	Molded — leak-proof seal guaranteed	Glued — can separate under vibration
Efficiency	True 2-micron absolute — tested to CAT standards	Often "nominal" ratings — larger particles pass through
Thread Precision	7/8-14 UNS-2B machined to exact spec	Inconsistent threading can cause leaks

2-Pack vs 6-Pack — Which Should You Buy?

Pack Size	Best For	Value
2-Pack (This Product)	Single-machine owners, small contractors, independent mechanics, one-excavator shops	Good per-filter savings vs singles
6-Pack	Equipment companies, construction contractors, multi-machine fleets, rental companies	Best per-filter price

What's in the Box

2x Genuine Caterpillar 1R-0751 Advanced High Efficiency Fuel Filters
Each filter individually sealed in original CAT packaging
Pre-installed gasket on each filter

Shipping & Guarantee

Free shipping within the continental United States
Genuine Caterpillar OEM — not aftermarket, not reboxed, not expired
Every filter ships in original Caterpillar packaging

Shipping Policy

Please carefully review our Shipping Policy when purchasing our products, as it applies to any order you place with us.

WHAT ARE MY SHIPPING & DELIVERY OPTIONS?

Logistics: UPS, USPS, DHL.

We offer free shipping across the USA.

All delivery times and dates provided are estimates and given in good faith.

For EU and UK consumers: This does not affect your statutory rights. Unless specifically noted, estimated delivery times reflect the earliest available delivery, and items will be delivered within 30 days after we accept your order. For more information, please refer to our Terms.

ORDER PROCESSING TIME

Processing Time: 1-2 Days
Shipping Time: 3-7 Days

DO YOU DELIVER INTERNATIONALLY?

Yes, we ship worldwide.

Note:
International deliveries may be subject to various rules and restrictions, and you may incur additional taxes and duties beyond our control. You are responsible for complying with the laws of your country and for any associated costs.

WHAT HAPPENS IF MY ORDER IS DELAYED?

If your delivery is delayed, we will inform you as soon as possible and provide a revised estimated delivery date.

For EU and UK consumers: This does not affect your statutory rights. For more information, please refer to our Terms.

QUESTIONS ABOUT RETURNS?

If you have questions about returns, please review our Return Policy.

COVID-19 STATEMENT & SHIPPING DELAYS

Please be aware that there may be shipping delays due to ongoing COVID-19 impacts. Limited transportation availability may extend delivery times. Our team is doing our best to provide accurate timelines, but the global supply chain is unpredictable, and delays may occur. We appreciate your patience and understanding during this time and are happy to assist with any questions or concerns regarding your orders.

HOW CAN YOU CONTACT US ABOUT THIS POLICY?

If you have any further questions or comments, please contact us at our Support Center.

Thank you for choosing PEAK PERFORMANCE Filters. We hope you are satisfied with your order. However, if you are not completely happy due to any damaged or missing parts, you may return the item for a refund or replacement. Please see below for more information on our return policy.

RETURNS

To be eligible for a refund, you must return the product within 14 calendar days of your purchase. The item must be in the same condition you received it and undamaged. All orders are final; we do not accept returns or exchanges unless the items received are damaged or missing.

We are not liable for any consequences arising from customers purchasing products from us and subsequently selling them on third-party platforms (Amazon, eBay, Walmart, etc.). Any actions taken by these platforms, including listing deactivation or account suspension, are beyond our control. Customers engaging in such activities do so at their own risk and should adhere to the policies and guidelines of those platforms.

RETURN PROCESS

To return an item, please contact customer service to request a refund or replacement with proof of damage or missing parts (such as videos or pictures). Once your claim is verified, contact support to obtain a return address. Securely package the item in its original packaging and include your proof of purchase (Order Invoice). When a return is authorized, PEAK PERFORMANCE Filters will proceed with the refund or replacement.

In some cases, your return shipment may be free of charge. If you return an item for a reason not related to our error, the parcel will be sent back to your original address, and no refund will be initiated.

REFUNDS

After we receive your return and inspect the item, we will process your refund or exchange. Please allow at least 14 days from the receipt of your item for processing. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your card issuer. We will notify you via email when your return has been processed.

EXCEPTIONS

The following items cannot be returned or exchanged:

Perishable items
Intimates
Gift cards
Custom items
Digital products

For defective or damaged products, please contact us using the details below to arrange a refund or exchange.

QUESTIONS

If you have any questions regarding our return policy, please contact us at our Support Center.

peakperformancefilters@gmail.com

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Caterpillar 1R-0751 Fuel Fi...

Caterpillar 1R-0751 Advanced High Efficiency Fuel Filter — Genuine CAT OEM 2-Pack

What You Get

Why the 1R-0751 Matters

Specifications

Compatible Caterpillar Engines

Compatible Truck & Equipment Applications

⚠️ 1R-0751 vs 1R-0750 vs 1R-0749: Don't Order the Wrong Filter

Cross-Reference Part Numbers

Why Buy Genuine Caterpillar (Not Aftermarket)?

2-Pack vs 6-Pack — Which Should You Buy?

What's in the Box

Shipping & Guarantee

WHAT ARE MY SHIPPING & DELIVERY OPTIONS?

ORDER PROCESSING TIME

DO YOU DELIVER INTERNATIONALLY?

WHAT HAPPENS IF MY ORDER IS DELAYED?

QUESTIONS ABOUT RETURNS?

COVID-19 STATEMENT & SHIPPING DELAYS

HOW CAN YOU CONTACT US ABOUT THIS POLICY?

RETURNS

RETURN PROCESS

REFUNDS

EXCEPTIONS

QUESTIONS

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Caterpillar 1R-0751 Fuel Filter 2-Pack | Genuine CAT OEM C7 C9 3126 3116

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Caterpillar 1R-0751 Fuel Fi...

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Caterpillar 1R-0751 Advanced High Efficiency Fuel Filter — Genuine CAT OEM 2-Pack

What You Get

Why the 1R-0751 Matters

Specifications

Compatible Caterpillar Engines

Compatible Truck & Equipment Applications

⚠️ 1R-0751 vs 1R-0750 vs 1R-0749: Don't Order the Wrong Filter

Cross-Reference Part Numbers

Why Buy Genuine Caterpillar (Not Aftermarket)?

2-Pack vs 6-Pack — Which Should You Buy?

What's in the Box

Shipping & Guarantee

WHAT ARE MY SHIPPING & DELIVERY OPTIONS?

ORDER PROCESSING TIME

DO YOU DELIVER INTERNATIONALLY?

WHAT HAPPENS IF MY ORDER IS DELAYED?

QUESTIONS ABOUT RETURNS?

COVID-19 STATEMENT & SHIPPING DELAYS

HOW CAN YOU CONTACT US ABOUT THIS POLICY?

RETURNS

RETURN PROCESS

REFUNDS

EXCEPTIONS

QUESTIONS

// Recently viewed products

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