Muldoon's Performance Transmissions

Transmission Parts

Muldoon’s Performance Transmissions in New Castle, DE is your trusted source for high-quality Dodge diesel truck transmission parts. From clutches and bands to solenoids and sensors, we stock everything you need to keep your transmission running strong. Built to withstand the demands of towing, hauling, and high horsepower, our parts are engineered for durability and performance. Whether you’re repairing, upgrading, or rebuilding, Muldoon’s delivers the parts that keep your Dodge on the road and working hard.

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Billet Input Shaft Options

(0 review)
Price range: $649.00 through $1,495.00
Billet Output Shaft OptionsBillet Output Shaft Options
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Billet Output Shaft Options

(0 review)
Price range: $730.00 through $744.00
47-48 Flexplate
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Torque Converter
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Torque Converter Options

(0 review)
Price range: $1,995.00 through $2,295.00
MPT Full Manual Valve Body 47RH/47REMPT Full Manual Valve Body 47RH/47RE
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MPT Full Manual Valve Body 47RE

(0 review)
Price range: $950.00 through $1,395.00
Servo Upgrades & Transmission Case Accessories
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Servo Upgrades & Transmission Case Accessories 47RE

(0 review)
Price range: $20.00 through $300.00
Sonnax Servo Cover
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FMVB Install Kit
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FMVB Install Kit

(0 review)
Price range: $40.00 through $85.00
47/48 Service Kit
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Seal Kit
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Seal Kit

(0 review)
Price range: $95.00 through $115.00
Replacement Bands
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Replacement Bands

(0 review)
Price range: $25.00 through $125.00
BearingBearing
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Replacement Bearings 48RE

(0 review)
Price range: $45.00 through $60.00
Replacement SpragsReplacement Sprags
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48RE Replacement Sprags

(0 review)
Price range: $30.00 through $35.00
48RE Manual Valve Body Install kit
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48RE Manual Valve Body Install Kit

(0 review)
Price range: $1,800.00 through $2,285.00
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MPT 48RE Full Manual Valve Body

(0 review)
Price range: $950.00 through $1,395.00
MPT 48RE Automatic Valve Body
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MPT 48RE Automatic Valve Body

(0 review)
Price range: $850.00 through $1,350.00
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Replacement Heat ExchangerReplacement Heat Exchanger
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Replacement Heat Exchanger

(0 review)
Original price was: $673.48.Current price is: $250.00.
68RFE SauceBoss valve body kit
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68RFE SauceBoss Valve Body Kit

(0 review)
Price range: $1,875.00 through $2,785.00
TSI 68RFE Input ShaftTSI 68RFE Input Shaft
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68RFE Flexplate
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68RFE Billet Flex Plate

(0 review)
Price range: $295.00 through $325.00
68RFE Upgraded Valve Body
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68RFE Upgraded Valve Body

(0 review)
Price range: $1,450.00 through $2,250.00
68RFE Valve Body Accumulators
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DNJ Billet channel plateDNJ Billet channel plate
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68RFE Upgraded Low Sprag68RFE Upgraded Low Sprag
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68RFE Thermostatic Bypass68RFE Thermostatic Bypass
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68RFE Thermostatic Bypass

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Price range: $82.50 through $109.00
Switched Shifter
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Switched Shifter

(0 review)
Price range: $610.00 through $650.00
Switched Shifter Replacement CableSwitched Shifter Replacement Cable
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8 Pin Vehicle Harness
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OD/TCC Solenoid 47
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Heavy Spring
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MPT Full Manual Valve Body 47RH/47REMPT Full Manual Valve Body 47RH/47RE
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MPT Full Manual Valve Body 47RH

(0 review)
Price range: $950.00 through $1,395.00
MPT 48RE Automatic Valve BodyMPT 48RE Automatic Valve Body
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MPT 47RH Automatic Valve Body

(0 review)
Price range: $825.00 through $1,275.00
OD/TCC Solenoid 47
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Switched Shifter Replacement CableSwitched Shifter Replacement Cable
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Replacement SpragsReplacement Sprags
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Replacement Sprags 47RH

(0 review)
Price range: $30.00 through $35.00
Replacement SpragsReplacement Sprags
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Replacement Sprags 47RE

(0 review)
Price range: $30.00 through $35.00
BearingBearing
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Replacement Bearings 47RH

(0 review)
Price range: $45.00 through $60.00
BearingBearing
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Replacement Bearings 47RE

(0 review)
Price range: $45.00 through $60.00
Replacement Bands
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Replacement Bands 47RH

(0 review)
Price range: $25.00 through $125.00
Replacement Bands
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Replacement Bands 47RE

(0 review)
Price range: $25.00 through $125.00
FMVB Install Kit
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FMVB Install Kit 47RH

(0 review)
Price range: $40.00 through $85.00
FMVB Install Kit
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FMVB Install Kit 47RE

(0 review)
Price range: $40.00 through $85.00
Sonnax Servo Cover
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Servo Upgrades & Transmission Case Accessories
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Servo Upgrades & Transmission Case Accessories 47RH

(0 review)
Price range: $20.00 through $300.00
Servo Upgrades & Transmission Case Accessories
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Switched Shifter
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Switched Shifter 47RH

(0 review)
Price range: $610.00 through $650.00
Seal Kit
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Seal Kit 47RH

(0 review)
Price range: $95.00 through $115.00
Seal Kit
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47RE Seal Kit

(0 review)
Price range: $95.00 through $115.00
47/48 Service Kit
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Torque Converter
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Torque Converter Options 47RH

(0 review)
Price range: $1,995.00 through $2,295.00
Torque Converter
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Torque Converter Options 47RE

(0 review)
Price range: $1,995.00 through $2,295.00
MPT Full Manual Valve Body 47RH/47REMPT Full Manual Valve Body 47RH/47RE
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MPT Full Manual Valve Body 47RH

(0 review)
Price range: $950.00 through $1,395.00
MPT 48RE Automatic Valve BodyMPT 48RE Automatic Valve Body
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MPT 47RE Automatic Valve Body

(0 review)
Price range: $825.00 through $1,275.00
47RH/47RE & 48RE Transmission Pan47RH/47RE & 48RE Transmission Pan
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Billet Input Shaft Options 47RH

(0 review)
Price range: $649.00 through $1,495.00
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Billet Input Shaft Options 47RE

(0 review)
Price range: $649.00 through $1,495.00
47-48 Flexplate
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47-48 Flexplate
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Billet Output Shaft OptionsBillet Output Shaft Options
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Billet Output Shaft Options 47RH

(0 review)
Price range: $730.00 through $744.00
Billet Output Shaft OptionsBillet Output Shaft Options
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Billet Output Shaft Options 47RE

(0 review)
Price range: $730.00 through $744.00
8 Pin Vehicle Harness
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Testimonials

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Josh Campbell profile picture
Josh Campbell
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I purchased a stage 3 47re from muldoons needless to say I’m very impressed with the shifts and lockup! These guys know their way around dodge transmissions, truly the best in the business!
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Thomas Snow profile picture
Thomas Snow
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
68RFE stage 1… By far one of the best experiences iv had at a shop. From scheduling and explaining what I need and getting it done fast. What made it even better, I showed up to pick up my truck “ from Virginia” and John was supposed to leave early. I uploaded my tune and it was incorrect… he stuck around 3-4 hours until I revived my new tune to make sure I could get it done right and head home. Definitely earned a life long customer and I will recommend this place to anyone!
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Mike Smiley profile picture
Mike Smiley
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Muldoons Diesel Performance is a legitimate company, they were great to deal with and I am very satisfied with the outcome. I highly recommend John and his team to anyone looking for a built transmission.
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Michael Fanelli profile picture
Michael Fanelli
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had an issue. 2wd slip yoke bushing manufacturing defect or mix-up. After I sent them a measurement, they came to my house with new parts, crawled under my truck, and rectified the issue. Mistakes happen. John dropped everything and got me taken care of. These guys really take pride in their work, and it shows.
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Tammy Allen profile picture
Tammy Allen
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
John was patient and amazing to work with. Very knowledgeable and helpful. A++++ customer service.
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Eric Bost profile picture
Eric Bost
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Another 5 star review for Muldoon’s! They were great to work with, I scheduled with them a few weeks ahead of time so that I could limp my truck up from NC with no overdrive / losing my torque converter, and they had a new Towmax installed in 1.5 days! Big thanks to everyone at Muldoons, the transmission is doing great so far and I have been asking a lot of it!
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Isaac Mcneal profile picture
Isaac Mcneal
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great people, amazing customer service and quality workmanship. What more could you ask for!
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brandon wells profile picture
brandon wells
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Quality parts. And the guy who packed my stuff was not afraid to used packing paper. Stuff was packed tighter in that box than a nuns rear. Slightly disappointed I didn't get any stickers though 😂
Google
Darren Furlong profile picture
Darren Furlong
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
So way back in 2019 I decided to upgrade the 68rfe. I called Muldoons diesel made the apt and drove all night to be there first thing in the am. So now 5 years later still going strong Highly recommend John and crew for 68rfe trans rebuilds! Have not had any issues would go back again. Actually thinking of reaching out to see if there are any updates and just do a refresh on the trans.

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Team bonding, Office Space style 😎🖨️

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Not all gifts are great, but the gift of a Muldoon’s transmission is! 

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Never too busy for TikTok time!

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Your day can’t be ruined in you ruin theirs first! 

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Low reverse bushing height is one of those tiny details that can make a huge difference.

Set it right. Don’t guess.

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Shop anywhere, we recommend Muldoon’s 😏

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Sorry John 🔥🍩

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This is why we dyno test. 

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Social media star George 🤩

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They love having their pictures taken!

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