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Paccar MX13 Pedal Assembly 2018-2022: OEM S21-1024

PACCAR MX13 PEDAL ASSEMBLY 2018-2022: OEM S21-1024

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,495.00

CORE CHARGE:

$200.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBERS21-1024
PART TYPEPedal Assembly
BRANDPaccar
ENGINE MAKEPaccar
ENGINE TYPEMX13
YEAR2018-2022
PART NUMBERS21-1024
APPLICATION NOTESKwnworth, Peterbuilt

PRODUCT DESCRIPTION

This is a Genuine New, Paccar Pedal Assembly, Paccar part number S21-1024 ( OEM Part Number S21-1024 ).This part is primarily made for a Paccar MX13, production years 2018-2022, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM S21-1024
Additional OEM S21-1024

ADDITIONAL DETAILS

CONDITION Genuine New
UPC / Barcode 00840490553507
WEIGHT 8.00 LBS

SHIPPING OPTIONS

Ship Weight : 8.00 LBS
UPS Ground, 2nd Day Air, Next Day Air

SHIPPING POLICY

Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.

The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.

Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.

Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".

If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.

As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.

What is a Core Charge?

A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.

30 Day Core Charge Hold

You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.

The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.

The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.

All fluids must be drained.

If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.

Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.


Take control of your drive with the Paccar MX13 Pedal Assembly 2018–2022: OEM S21-1024, engineered for smooth, responsive throttle and brake action. This genuine OEM assembly ensures precision and reliability where it matters most, helping you stay confident behind the wheel. Built tough for heavy-duty use and seamless integration, it’s the perfect match for your MX13-powered rig. Feel the difference in control and durability on every mile.

FITMENT CHART

YEARMAKEENGINE(S)
2018Paccar MX13
2019Paccar MX13
2020Paccar MX13
2021Paccar MX13
2022Paccar MX13

PEOPLE ALSO ASKS | BLOG(S)

A smooth, responsive throttle starts with a properly functioning pedal assembly — the interface between driver intent and engine performance. For Paccar MX-13 engines built from 2018 through 2022, the Paccar MX13 Pedal Assembly 2018–2022: OEM S21-1024 delivers a direct-fit, factory-approved solution designed to restore accurate throttle control, reliable input signals, and dependable operation on the road.

    • This pedal assembly is engineered specifically for Paccar MX-13 diesel engines from 2018 to 2022,
      ensuring correct fitment and seamless compatibility with original sensor and harness connections.

    • The OEM S21-1024 unit translates your foot movement into precise electronic throttle signals,
      helping maintain consistent response and driving feel throughout acceleration.

    • A properly functioning pedal assembly supports stable communication with the engine control module (ECM),
      reducing the likelihood of throttle lag, hesitation, or unresponsive inputs that can affect drivability.

    • Installing the correct OEM pedal assembly helps prevent error codes or warning lights related to throttle position,
      minimizing diagnostic confusion and unnecessary service time.

    • Quality construction and precise calibration contribute to long-lasting performance,
      reducing the need for frequent replacements or adjustments.

    • Choosing an OEM replacement like the Paccar MX13 Pedal Assembly 2018–2022: OEM S21-1024 means you get the fit, function,
      and reliability that aligns with Paccar’s original design standards.

The throttle pedal assembly may seem like a small part, but it has a big impact on engine response and driver confidence. The OEM S21-1024 pedal assembly restores accurate input translation and reliable throttle control for Paccar MX-13 engines, helping ensure smooth performance and fewer interruptions. At Tamerx Diesel Parts, we provide quality components to help keep your truck performing at its best, mile after mile.

A pedal assembly plays a crucial role in vehicle control, connecting the driver’s input to systems like braking, acceleration, or clutch operation. Although it may seem like a simple mechanical component, regular inspection and basic maintenance can help prevent wear, sticking, or premature failure. Keeping the pedal assembly in good condition supports safe and responsive vehicle operation.

  • Inspect for excessive play or looseness: Worn bushings or mounting points can affect pedal feel and control.

  • Lubricate pivot points when recommended: Proper lubrication reduces friction and prevents squeaking or binding.

  • Check return springs: Weak or damaged springs can cause slow pedal return or inconsistent operation.

  • Inspect linkage or cables: Ensure throttle or clutch cables are not frayed, stretched, or binding.

  • Keep the area clean: Dirt and debris around the pedal assembly can interfere with smooth movement.

  • Address unusual noises promptly: Clicking, grinding, or sticking should be inspected before worsening.

Extending the life of a pedal assembly depends on routine inspection and timely maintenance. By keeping pivot points clean, components secure, and linkages properly adjusted, drivers can maintain smooth control and prevent unexpected mechanical issues.

Wear, mechanical damage, or worn pivot points can make the pedals feel loose or unresponsive. Installing a new Paccar MX13 Pedal Assembly 2018-2022: OEM S21-1024 restores precise and safe pedal action.

Yes, if the pedal assembly binding or misreads driver input, it can lead to unpredictable acceleration or braking behavior. Replacing it helps keep your truck responsive and safe under all driving conditions.

 

Yes, the Paccar MX13 Pedal Assembly 2018-2022: OEM S21-1024 is built to match original equipment specifications. It offers the same fit and performance as the part installed at the factory.

A properly functioning pedal assembly provides accurate throttle input that is translated directly to the engine control system. This ensures smooth and consistent acceleration every time.

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