Twin Maple Diesel LLC.

Twin Maple Diesel LLC. Diesel truck and equipment repair shop, trucks/equipment of any size. Roadside repair available
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We’ve been busy lately doing everything from building custom fan shrouds and controllers, engine work, transmission work...
07/15/2026

We’ve been busy lately doing everything from building custom fan shrouds and controllers, engine work, transmission work, suspension bushings and more. Here is a glimpse at what we have been up to. If you have any maintenance or repairs needed give us a call at 570-404-6147.

Two good sized projects the last two weeks in the main bay. 548g3 skidder came in for a lot of preventative maintenance ...
04/01/2026

Two good sized projects the last two weeks in the main bay. 548g3 skidder came in for a lot of preventative maintenance and some repair. All the leaks got fixed. Replaced all brake seals, axle seals and bearings and rebuilt a few hydraulic motors and valves. Then a 2015 t880 hydrovac for an engine replacement. Give us a call for your next repair. 570-404-6147.

Did you know we offer field repair services with our service truck? The service truck is fully equipped to handle almost...
03/16/2026

Did you know we offer field repair services with our service truck? The service truck is fully equipped to handle almost any job that comes up. Give us a call for your next repair! 570-404-6147

It’s been very busy in the shop the last few weeks. Here’s what came through today. 23’ F-600 was in for intermittent li...
02/26/2026

It’s been very busy in the shop the last few weeks. Here’s what came through today.
23’ F-600 was in for intermittent lighting issues and a lot of other body control module problems. We found and fixed the bcm feed circuit in the fender causing the concern.
03’ 6.0 F-350 for manifolds and gaskets
17’ F-350 for a brake job, preventative maintenance, and a disaster prevention kit.

Give us a call for any repairs or maintenance you may need. 570-404-6147

TMD has been running full throttle, tackling every kind of job that rolls through the door. This photo dump shows some o...
02/02/2026

TMD has been running full throttle, tackling every kind of job that rolls through the door. This photo dump shows some of what we’ve been working on lately. From brake work to the heavy, greasy, no‑one‑else‑wants‑it jobs, we do it all.

We specialize in Ford light duty diesel and cat on highway engines.

If you’ve got an unexpected breakdown or maintenance you can’t put off, give us a call at 570‑404‑6147. We’ll get you back on the road or in the woods/field asap. We take pride in what we do, always.

Here at TMD, we have been very busy, here are some of our most recent services, from lots of power stroke injectors and ...
10/29/2025

Here at TMD, we have been very busy, here are some of our most recent services, from lots of power stroke injectors and CP4 pumps to Cummins out-of-frame rebuilds, frame repairs, dozers, tractors, and everything in between. We have dealer-level software for most makes of light to heavy trucks, and some off road equipment enabling us to repair and service a vast variety of vehicles/equipment. We would like to thank all who have contributed to our success thus far. Please consider us for your next necessary repair or service. 570-404-6147

Was a good week here at TMD. Lots of different projects in the works. Yesterday we did some simple maintenance on multip...
09/06/2025

Was a good week here at TMD. Lots of different projects in the works. Yesterday we did some simple maintenance on multiple fire trucks, we also added some extra load support to the squad truck to help keep it stable when pulling their trailer. To end the day we headed south to our good friends and got their 650j the love it needed. Split the track and swapped out the front idler and reassembled and headed home to close out the night. Thank you to all our customers who keep us busy and on our feet at TMD we greatly appreciate the opportunity to serve the local community.

Here is a quick job we got buttoned up today. This cat 289c kept having some fueling issues, we diagnosed the injection ...
06/27/2025

Here is a quick job we got buttoned up today. This cat 289c kept having some fueling issues, we diagnosed the injection pump to be the problem. We replaced the pump and got the customer back to work. Give us a call to get on the schedule 570-404-6147

Another recent engine inframe we finished a few weeks ago. 3406b cat needed its counterbores cut and some cylinder head ...
06/18/2025

Another recent engine inframe we finished a few weeks ago. 3406b cat needed its counterbores cut and some cylinder head work while we were in there. Give us a call to get on the schedule 570-404-6147

Address

726 North Williamson Road
Covington, PA
16917

Telephone

+15704046147

Website

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