MAHLE ORIGINAL KL 79 Fuel Filter

A clogged or failing fuel filter can starve your engine of clean fuel, leading to rough idling, hesitation under acceleration, and reduced fuel economy. The MAHLE ORIGINAL KL 79 fuel filter is a replacement part engineered to trap contaminants before they reach your injectors or carburetor, restoring the clean, unrestricted fuel flow your engine needs to run smoothly.

Key Benefits

The MAHLE ORIGINAL KL 79 fuel filter is manufactured to restore clean, consistent fuel delivery. Here’s what this replacement part offers:

• MAHLE ORIGINAL manufacturing standards, backed by a standard parts warranty against defects in material and workmanship.
• Corrosion-resistant housing designed to withstand fuel additives, moisture, and temperature swings across all 50 states.
• Protection for downstream components, helping extend the service life of fuel injectors and fuel pumps by reducing particulate wear.
• Consistent fuel flow engineered to MAHLE ORIGINAL KL 79’s manufacturing tolerances for reliable engine performance in daily driving.
• OE-matching fitment engineered to match original mounting points and connection thread sizing for a direct-fit installation.
• Effective contaminant filtration designed to trap dirt, rust, and debris before they reach injectors, the carburetor, or the fuel pump.

Product Specifications

Every MAHLE ORIGINAL KL 79 fuel filter is manufactured to tight dimensional and performance tolerances. Full technical details are listed below; always verify fitment against your vehicle’s VIN before ordering.

MAHLE ORIGINAL is an aftermarket brand focused on precision-engineered filtration components manufactured to strict quality-control standards.

Use Cases and Applications

This fuel filter is suited for routine fuel system maintenance, pre-inspection replacement, and restoring smooth engine performance after a clogged filter is diagnosed during a service visit. Typical scenarios where drivers choose this part include:

• Replacing a fuel filter at the manufacturer-recommended service interval to prevent fuel starvation.
• Restoring smooth idle and acceleration after experiencing hesitation, stalling, or reduced power.
• Preparing a vehicle for a long-distance road trip where fuel system reliability matters most.
• Addressing hard starts, rough idling, or poor fuel economy traced back to a restricted fuel filter.

Because it’s engineered for a specific fuel system configuration, this part is intended to be installed as a direct match for the applications it’s designed for — always confirm fitment against your vehicle’s OE part number before ordering. Drivers who stay ahead of the manufacturer-recommended replacement interval typically avoid the more expensive repairs that come with a neglected fuel system, including premature fuel pump failure and injector fouling.

Quality Assurance and Certifications

MAHLE ORIGINAL is an aftermarket brand focused on precision-engineered filtration components manufactured to strict quality-control standards. Each MAHLE ORIGINAL KL 79 unit undergoes manufacturer quality control testing for filtration efficiency, flow rate, and dimensional accuracy before leaving the factory. Materials and manufacturing processes are designed to meet automotive industry durability benchmarks referenced by resources such as general fuel filter technology and design.

Shipping and Delivery

We ship the MAHLE ORIGINAL KL 79 fuel filter to all 50 U.S. states with tracked, insured delivery. Most orders leave our warehouse within 1–2 business days and arrive within 3–7 business days depending on destination. Review full details on our shipping policy page, or browse our full engine and filtration parts shop for related components.

What Customers Are Saying

“”Installed the MAHLE ORIGINAL KL 79 and the rough idle I was chasing disappeared right away. Fit perfectly, no issues.” — Tyler, Tampa, FL

“”Easy install, exact fit for my truck. Would order from this shop again.” — Nicole, Tulsa, OK

Individual results may vary based on vehicle condition, fuel quality, and installation quality.

Frequently Asked Questions

How much does professional installation typically cost?

Labor costs vary by shop and region, but fuel filter replacement is a routine maintenance service most licensed repair shops can complete quickly. Some inline filters are simple DIY jobs, while others require fuel system depressurization best left to a professional.

Do you ship to my state?

Yes, we ship to all 50 U.S. states with tracked, insured shipping on every order.

What vehicles is this fuel filter compatible with?

This MAHLE ORIGINAL KL 79 fuel filter is manufactured to fit its specified applications. Always cross-reference your vehicle’s VIN or OE part number against our fitment guide, or contact our support team through the contact page before ordering to confirm compatibility.

Why is this part priced at $11.99?

Pricing reflects the MAHLE ORIGINAL brand’s manufacturing quality, materials, and engineering tier relative to other options in our catalog, while remaining competitive with comparable OE and aftermarket parts.

What symptoms indicate a failing fuel filter?

Common symptoms include rough idling, hesitation or stumbling under acceleration, difficulty starting, reduced power, stalling, and in some cases reduced fuel economy. A severely clogged filter can eventually cause a no-start condition.

What is the EAN for the MAHLE ORIGINAL KL 79?

The MAHLE ORIGINAL KL 79 carries EAN 0027067662941, 4009026306451. You can use this number, along with your vehicle’s OE reference number, to confirm fitment before ordering.

Can I install this fuel filter myself?

Experienced DIY mechanics with the correct tools can often complete this installation at home, particularly for inline filters. Spin-on and in-tank filters may require fuel system depressurization — if you’re unsure, we recommend having it installed by a certified technician.

What type of fuel filter is this?

The MAHLE ORIGINAL KL 79 is a in-line filter fuel filter. See the specifications table above for full technical details.

How often should a fuel filter be replaced?

Most manufacturers recommend replacing the fuel filter every 20,000–40,000 miles, though intervals vary by vehicle and fuel quality. Check your owner’s manual for the manufacturer-recommended interval.

What is your return policy on this part?

Unused parts in original packaging can be returned within our standard return window. Review the complete terms on our warranty policy page or reach out via our contact page.

Does this fuel filter come with a warranty?

Yes, this part is covered by the manufacturer’s standard warranty against defects in material and workmanship. Warranty terms are outlined on our warranty policy page.

Related Parts and Resources

• Browse our full engine & filtration catalog
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• MAHLE ORIGINAL KX 220D Fuel Filter
• MAHLE ORIGINAL KX 393D Fuel Filter
• MAHLE ORIGINAL KX 338/22D Fuel Filter
• BOSCH F 026 402 809 Fuel Filter
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• Shipping policy
• General FAQ
• About CG Auto Parts Shop

For general fuel system maintenance guidance, see general fuel filter technology and design and EPA guidance on fuel system maintenance and emissions.