Mopar Masters

Mopar Masters Better than Dealership quality, at affordable rates! Mess with the best end up like the rest!

Jeep Wrangler 8HP75 SwapThis Hellcat-powered Wrangler just got even meaner. We upgraded it with the legendary 8HP75 8-sp...
06/24/2026

Jeep Wrangler 8HP75 Swap
This Hellcat-powered Wrangler just got even meaner. We upgraded it with the legendary 8HP75 8-speed automatic transmission, delivering lightning-fast shifts, improved drivability, and better power delivery throughout the entire RPM range.
The result? Harder launches, smoother cruising, lower cruising RPM, and a transmission capable of handling serious horsepower while keeping the Hellcat's power right where it belongs—on the ground.
From custom integration to final calibration, this swap transforms the driving experience and takes this Wrangler to the next level.
More gears. More control. More performance.
Mopar Masters — Factory experience, custom solutions, and performance without compromise. 💪🔥🚙

This is exactly why our transmissions include free installations a thorough inspection at no additional charge.During th...
06/15/2026

This is exactly why our transmissions include free installations a thorough inspection at no additional charge.
During the installation of this customer's Tow Beast 68RFE transmission, we discovered a section of the transmission wiring harness with worn-through insulation and broken wires. Issues like this can easily be overlooked, leading to transmission performance problems, fault codes, or even repeat repairs.
At Mopar Masters, we don't just replace parts—we take the time to identify and correct underlying issues to ensure the repair is done right the first time. Attention to detail and dependable service are what set us apart.
Tow Beast 68RFE installed, wiring concerns identified and corrected, and this customer is back on the road with confidence

Vehicle presented with complaints of reduced power, frequent regeneration events, and elevated exhaust backpressure. Dia...
06/02/2026

Vehicle presented with complaints of reduced power, frequent regeneration events, and elevated exhaust backpressure. Diagnostic testing revealed the Diesel Particulate Filter (DPF) was severely face-plugged with soot and heavily contaminated with ash deposits, restricting exhaust flow through the filter substrate. Differential pressure readings across the DPF were significantly above specification, confirming excessive restriction within the aftertreatment system.
Further diagnosis identified a leaking EGR cooler as the root cause of the failure. Coolant entering the exhaust stream through the failed EGR cooler introduced contaminants into the aftertreatment system, accelerating ash accumulation and contributing to severe face plugging of the DPF. The resulting restriction prevented effective regeneration, increased exhaust backpressure, reduced engine performance, and placed additional stress on the turbocharger and exhaust aftertreatment components.
Corrective action includes replacement of the failed EGR cooler, replacement of the DPF assembly, inspection of related aftertreatment components for coolant contamination, and verification of proper EGR and exhaust system operation. Following repairs, all applicable aftertreatment adaptations and learned values should be reset, and the vehicle should be road-tested to confirm normal exhaust backpressure, regeneration performance, and overall engine operation.

Inspection revealed engine damage consistent with the use of an oil viscosity not meeting manufacturer specifications. M...
06/01/2026

Inspection revealed engine damage consistent with the use of an oil viscosity not meeting manufacturer specifications. Modern engines are engineered with precise lubrication requirements, and deviating from the recommended oil weight can adversely affect oil pressure, lubrication performance, and component longevity. This serves as a reminder that manufacturer oil specifications are established through extensive engineering and testing to ensure proper engine operation and durability.

Cooling System InspectionTested coolant condition and found the coolant had become degraded and acidic, resulting in ele...
06/01/2026

Cooling System Inspection
Tested coolant condition and found the coolant had become degraded and acidic, resulting in elevated electrolysis (stray voltage) within the cooling system. Excessive electrolysis can contribute to premature deterioration of cooling system components, sensor malfunctions, and electrical-related issues. Recommended servicing the cooling system with a complete coolant flush and refill using the manufacturer-specified coolant to restore proper corrosion protection and electrical balance within the system.

Rear Main Seal Replacement – Cummins DieselDiagnosed engine oil leak originating from the rear main seal. Removed necess...
06/01/2026

Rear Main Seal Replacement – Cummins Diesel
Diagnosed engine oil leak originating from the rear main seal. Removed necessary components to gain access, replaced the rear main seal, and inspected sealing surfaces for wear or damage. Reassembled all components to factory specifications, verified proper installation, and checked for leaks following repair. Engine is operating properly with no leaks present at this time.

Some 25.2/3 chassis work
05/31/2026

Some 25.2/3 chassis work

05/22/2026

Had an engine job fall through, so we’ve got openings all week! If your ride needs work, diagnostics, performance upgrades, or repairs — now’s the time to get in before the schedule fills back up. Let’s get you taken care of! 🔧🔥

2019 hellcat lower pulley
05/08/2026

2019 hellcat lower pulley

2018 Gear housing oil leak repair! Gaskets always seem to want to move!
05/08/2026

2018 Gear housing oil leak repair! Gaskets always seem to want to move!

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Mopar Lane
Dacono, CO

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+17205572952

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