![Regitar USA Knock Sensor f/Mercruiser Inboard Engines: MCM V-6 V-8 (305, 350 496 CID) MPI Engines w/ECM 555 [RMH001] by Regitar U.S.A. -](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107532XL.webp?v=1747558276)
19% off
Price history at Lotz Outdoors
Recorded at Lotz Outdoors since Oct 9, 2026: low $58.76 (Oct 9, 2026), high $58.79 (Oct 26, 2026). Last checked Nov 1, 2026.
From the store's product feed and AvantLink's price records; feeds can lag the store's own site.
Product Description
Knock Sensor for Mercruiser Inboard Engines: MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555Knock Sensor for Mercruiser Inboard Engines: MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555.Engine Brand:Mercury / MercruiserFitment: Mercruiser 5.7L - 8.2L Mariner 135HP - 300HP Brochure (pdf)
Regitar USA Knock Sensor f/Mercruiser Inboard Engines: MCM V-6 V-8 (305, 350 496 CID) MPI Engines w/ECM 555 [RMH001]
$58.79
$73.00
19% Discount
You save $14.21
In Stock
at Lotz Outdoors
Price verified today
Amazon
eBay
Product Details
Brand
Regitar U.S.A.
![Regitar USA Temperature Sensor f/Volvo Penta Engines [RMP001]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107577XL.webp?v=1747558789)
![Regitar USA Temperature Sensor f/Mercruiser Volvo Penta Engines [RMP003]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107579XL.webp?v=1747558824)
![Regitar USA Oil Pressure Sender - 80 PSI: Mercruiser 3.0L, 5.7L, 5.8L, 6.3L, 8.1L, 8.6L [RMP005]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107581XL.webp?v=1747558859)
![Regitar USA Camshaft Position Sensor f/Mercruiser Engines [RMX004]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107654XL.webp?v=1747559249)
![Regitar USA Throttle Position Sensor f/Mercruiser, OMC Volvo Penta Engines [RMQ002]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107596XL.webp?v=1747558896)
![Regitar USA Temperature Sensor f/Mercruiser, OMC, Volvo Penta Engines [RMP004]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107580XL.webp?v=1747558841)
![Regitar USA Camshaft Position Sensor f/Honda Outboard Engines [RMX002]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107653XL.webp?v=1747559220)
![Regitar USA Knock Sensor f/Honda Engines: 2002- UP BF200A HP - BF225A HP [RMH003]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107534XL.webp?v=1747558316)
![Regitar USA Knock Sensor f/Mercruiser, Volvo Penta, OMC Inboard Engines: MCM/MIE GM V-8 (454, 502, 540 572 CID) Engines. [RMH004]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107533XL.webp?v=1747558293)
![Regitar USA MAP Sensor f/Mercruiser Inboard Engines: 2001 UP MCM 525 EFI; MCM/MIE 8.2 Engines [RMJ005]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107541XL.webp?v=1747558447)
![Regitar USA Temperature Sensor for Volvo Penta Engines [RMP002]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107578XL.webp?v=1747558807)
![Regitar USA Throttle Position Sensor f/OMC 1993 5.0L 5.8L [RMQ004]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107598XL.webp?v=1747558931)
![Regitar USA Crankshaft Position Sensor f/Volvo 3-Pin 8.1L [RMD003]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107481XL.webp?v=1747557700)
![Regitar USA MAP Sensor f/Mercruiser Inboard Engines: GM V8, 575 Hp GM MIE Engines [RMJ004]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107540XL.webp?v=1747558422)
![Regitar USA Camshaft Position Sensor f/Suzuki Evinrude Engines [RMX006]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107655XL.webp?v=1747559278)
![Regitar USA Throttle Position Sensor f/Mercury/Mercruiser, OMC, Volvo Penta Inboard Engines [RMQ001]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107595XL.webp?v=1747558878)
![Regitar USA MAP Sensor f/Mercruiser Engines: 1995 - 1998 4.3L, 5.0L, 5.7L, 7.4L, 8.2L [RMJ001]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107536XL.webp?v=1747558363)
![Regitar USA MAP Sensor f/Mercruiser Inboard Engines: 350 MAG, 4.3L, 5.7L, 6.2L Engines [RMJ006]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107542XL.webp?v=1747558470)
![Regitar USA Crankshaft Position Sensor f/Volvo Penta 4.3, 5.0 5.7L [RMD001]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/107479XL.webp?v=1747557660)