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Description
131973 THROTTLE PLATE POSITION SENSOR (CUMMINS L10/M11, DETROIT DDEC III/IV)Technical Specifications Part Type Throttle Position Sensor Kit (Throttle Plate Sensor) Part Number 131973 Brand Line SAP (Williams Controls) Description Throttle Plate Position Sensor Kit Electronic Throttle Sensor Assembly for Williams Pedals Compatible Pedals Williams 351375, 351376, 351377 Kit Contents Sensor (131040), Wire Harness, Mounting Screws, Wire Clamp Engine Application Cummins L10 M11, Detroit Diesel DDEC III IV, and compatible pre 1998
Technical Specifications
| Part Type | Throttle Position Sensor Kit (Throttle Plate Sensor) |
| Part Number | 131973 |
| Brand / Line | SAP (Williams Controls) |
| Description | Throttle Plate Position Sensor Kit – Electronic Throttle Sensor Assembly for Williams Pedals |
| Compatible Pedals | Williams 351375, 351376, 351377 |
| Kit Contents | Sensor (131040), Wire Harness, Mounting Screws, Wire Clamp |
| Engine Application | Cummins L10/M11, Detroit Diesel DDEC III/IV, and compatible pre-1998 electronic throttle engines |
| Application | Heavy-duty truck electronic throttle position sensing (throttle plate / pedal) |
Cross References
| Brand | Part Number |
|---|---|
| SAP / Williams Controls | 131973 |
| Williams Controls (Supersedes) | 133313 |
| Sensor Only | 131040 |
| Application | Throttle Plate Position Sensor Kit for Williams Electronic Throttle Pedals |
Vehicle Fitment
| Make | Model | Model Years | Notes |
|---|---|---|---|
| UNIVERSAL | All Heavy-Duty Trucks with Williams Electronic Throttle Pedals (Freightliner, Kenworth, Peterbilt, International, Western Star, Mack, Volvo, Sterling) | 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 | Cummins L10/M11 and Detroit Diesel DDEC III/IV electronic throttle applications |
| Buses & Coaches (MCI, Prevost, Blue Bird, Van Hool) | 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 | Equipped with Williams 351375/376/377 throttle pedals | |
| Vocational / Construction Equipment | 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 | Cummins and Detroit Diesel electronic throttle equipped models | |
| Direct replacement throttle plate position sensor kit for Williams Controls electronic throttle pedals on pre-1998 engines. | Kit includes sensor, harness, and mounting hardware | ||
| Notes | SAP 131973 / Williams Controls 131973 Throttle Plate Position Sensor Kit. Provides precise throttle plate/pedal position feedback to the engine controller. For use on Williams 351375, 351376, 351377 pedals. | ||
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4.5 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
Great Ergonomic Support and Fit, with Minor Adjustment Caveats
Color: Black Full Mesh, Style: Executive, Color: Black Full Mesh, Style: Executive
As someone who is 5'4" and 140 lbs, the size of the chair feels ideal, and the seat cushion is spacious without feeling overwhelmingly large. The breathable mesh material is high quality, keeping me cool during long working sessions while still feeling sturdy. The back support and adjustable lumbar feature aligns perfectly with my spine and has noticeably reduced my posture fatigue. The height adjustment mechanism operates smoothly to align perfectly with my desk, and the assembly process was surprisingly straightforward, taking less than 20 minutes with clear instructions and tools included. My only slight hesitations are regarding armrests not being long enough. The wheels are not easy to roll on carpet and require a bit of extra effort to move. Maybe a chair mat might be helpful on carpeted floors. However, for the price, the comfort and build are impressive.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
High quality and incredible customer service
Color: Black Full Mesh, Style: Executive
This is an extremely well made chair at a very competitive price. The packaging, assembly instructions, as well as the way the hardware was packaged and labeled is probably the best I've seen. I'm particular about tools, and the included allen wrench was better than the normal "included tools" so much so that i actually used it rather than one of my own. The assembly was easy, and the chair itself looks and feels very high quality, and is very comfortable. Perhaps best of all was the level of customer service. I emailed on a weekend to activate the warranty and request the free cushion they offer. I got a personal response in less than a day and they offered upgraded wheels for free as well. This is a company worth doing business with.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Great product AND customer service!
Color: Black Full Mesh, Style: Executive
I'm having a hard time writing this review because I can't tell which one I like better: the product or the customer service!
I work on a computer all day, so a comfortable office chair is critical for me. This chair is great - it's adjustable in every way I need it to be, especially the armrests. The breathable mesh is both durable and supportive, and is more comfortable to sit in than the "overstuffed" chair it replaced.
Let me just say: no company provides better customer service than MOLENTS. Right after assembling my chair (which was very easy, btw), I registered for the 2 year warranty they offer. The NEXT DAY I received an email from Alice in their customer service department 1) to confirm my warranty, 2) to tell me about the free foam seat cover they were sending me, and 3) to make sure the chair was comfortable and easy to assemble. Very few companies take the effort to follow up with customers right after making a purchase like that.
I'm extremely happy with this purchase. This chair is worth MORE than it's weight in gold, and I strongly recommend to anyone thinking about buying an office chair to buy it from MOLENTS - you won't regret it.
Oh, and if Alice's supervisors are reading this: she absolutely deserves a promotion!
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Great value and a good chair
Color: Black Full Mesh, Style: Executive
Great chair for the price. Not as solid as an Ergo but it's not thousands of dollars either. It's pretty easy to assemble and the directions are good. It rolls well on LVP flooring and they offer 'upgraded' wheels at no cost from what I can tell. I didn't order them since the included ones work perfectly.
I'm 6'4" and both the seat and arm heights can be adjusted to fit me well. The mesh seat is comfortable and the back works fine. The only downside for me is that the lumbar support doesn't adjust quite high enough to actually reach my lumbar area, but I think it would work for most folks.
Overall it's hard to argue with the cost and even if it only lasts a few years it's worth the money.
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Reviewed in the United States on December 21, 2025
★★★★★ 5
Great Chair and Outstanding Customer Service
Color: Black Full Mesh, Style: Executive
I desperately needed a new office chair. I ordered this chair with the mesh seat and it spike up my sciatica. I reached out to the company and Alice took great care to address the issue. She sent me a new seat with a foam cushion and it resolved the issue immediately. The chair is incredibly comfortable with the lumbar support, adjustability and foot support. She also sent me upgraded wheels as my chair is on a thin chair mat on hard wood floors. Alice was extremely responsive with possible options and very thorough with instructions on how to replace the seat. It is a high quality chair that I anticipate will last me quite some time. I highly recommend this company and will definitely order products from them again should the need arise. Thank you, Alice!!
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Reviewed in the United States on June 10, 2026
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