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Sonnax 36947-09K Transmission Sleeve Kit, Low/ Reverse Modulator (HD) 4R100

by Sonnax
Original price $47.81 - Original price $47.81
Original price
$47.81 - $47.81
Current price $47.81
in stock, ready to be shipped

Delivery time

You will receive your package in 2–5 business days within the contiguous U.S.

Brand: Sonnax

Other Part Number: S36741HCK

Type: Valve Body

Items Included: Modulator Sleeve, Orificed Valve, Holding Valve, S

Manufacturer Part Number: 36947-09K

Material: Aluminum

Universal Fitment: Yes

Vintage Part: No

Performance Part: Yes

4R100, E4OD Transmission

Heavy Duty Low/Reverse Modulator Sleeve Kit
Part No. 36947-09K

Fits '96-later units.

In Ford 4R100 and E4OD units, the holding capacity of even the largest modulator plunger valve assembly does not supply enough line pressure to the low/reverse clutch to adequately hold the clutch in diesel or heavy-duty applications. This same issue will occur in gas and street applications as the vehicle ages and wear at multiple locations continues to rob line pressure. Sonnax heavy duty low/reverse modulator sleeve kit 36947-09K is an innovative, dual-plunger valve drop-in replacement assembly that prevents repeated low/reverse clutch distress and burn-up. The inboard, smaller plunger valve has the ratio of the larger OE plunger valve, but functions primarily as the engagement control for the low/reverse clutch. A small orifice along the valve axis prevents harsh or bang engagements by maintaining a controlled feed flow to the larger, outboard holding valve. This valve provides almost double the holding capacity to the low/reverse clutch as the OE valve.

  • Innovative dual-valve design controls clutch engagement while nearly doubling holding capacity
  • Hardcoat anodized aluminum valves combat premature wear
  • Newly designed sleeve made from highly wear-resistant aluminum alloy
  • Modulator Sleeve
  • Orificed Valve
  • Holding Valve
  • Spring

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