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Sonnax 4L60E-LB1 Line Pressure Booster Kit 4L60-E, 4L65-E, 4L70-E early

Mitchell transmission supply
(3307)
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US $32.19
ApproximatelyAU $49.18
Condition:
Brand New
More information - About this item condition
8 available161 sold
People want this. 107 people are watching this.
Breathe easy. Returns accepted.
Postage:
Free Economy Shipping.
Located in: Jacksonville, Florida, United States
Delivery:
Estimated between Mon, 18 Aug and Fri, 22 Aug to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the postage service selected, the seller's postage history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Payments:
     Diners Club

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eBay item number:276422818573
Last updated on 23 May, 2025 23:54:16 AESTView all revisionsView all revisions

Item specifics

Condition
Brand New
Brand
Sonnax
Type
Pump components
Items Included
Line pressure booster kit
Manufacturer Part Number
4L60E-LB1
Universal Fitment
Yes
Vintage Part
No
Performance Part
Yes

Item description from the seller

About this seller

Mitchell transmission supply

99.4% positive Feedback•19K items sold

Joined May 2016
We sell automatic transmission parts for cars and light trucks, in business 40+ years, sourcing products direct from the manufacturers to offer the highest quality at the lowest possible price.This ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable postage costs
5.0
Postage speed
5.0
Communication
5.0

Seller feedback (3,324)

All ratings
Positive
Neutral
Negative
  • e***p (63)- Feedback left by buyer.
    Past year
    Verified purchase
    97 chevy 4l60e my transmission had always had a "soft" shift . i bought the sonnax boost valve and installed it . now my trans has an instant shift when going up thru the gears . the soft shift is gone . the boost valve was very easy to install . highly recommend .
  • 9***j (26)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Good part fast shipping
  • 1***3 (1)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Working out just great !
See all feedback

Product ratings and reviews

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5.0
3 product ratings
  • 3 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 3 reviews
  • by willstrees78
    16 Jul, 2020

    Sonnax

    It’s a sonnax part. The pros use them and so do manufacturers. Great upgrade to any transmission to boost line pressures and increase longevity. Make sure you get the right length for your tranny.

    Verified purchase: YesCondition: NewSold by: truetrans

  • by jc2live4ever
    18 Jun, 2022

    Great boost valve

    I used this on the last two transmissions. Want made 225psi, and the other made 235psi at full line pressure.

    Verified purchase: YesCondition: NewSold by: transmissionjobber

  • by pbre8513
    20 Jan, 2021

    a great up grade

    great quality an great performance of what it was designed to do

    Verified purchase: YesCondition: NewSold by: transmissionjobber

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