8-Speed Automatic Transmission Assembly for 2015 Dodge Charger
Product Notes Read before buying
This is an 8-speed 8HP45 automatic transmission for rear-wheel drive (RWD) vehicles with the 3.6L V6 engine only. It will not fit AWD models or vehicles with different engines.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Enforcer | Sedan | 2015 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Enforcer | Sedan | 2015 | V8 5.7L | AWD/RWD | Automatic |
| Pursuit | Sedan | 2015 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Pursuit | Sedan | 2015 | V8 5.7L | AWD/RWD | Automatic |
| R/T | Sedan | 2015 | V8 5.7L | RWD | Automatic |
| R/T Road & Track | Sedan | 2015 | V8 5.7L | RWD | Automatic |
| R/T Scat Pack | Sedan | 2015 | V8 6.4L | RWD | Automatic |
| SE | Sedan | 2015 | V6 3.6L FLEX | AWD/RWD | Automatic |
| SRT 392 | Sedan | 2015 | V8 6.4L | RWD | Automatic |
| SRT Hellcat | Sedan | 2015 | V8 6.2L Supercharged | RWD | Automatic |
| SXT | Sedan | 2015 | V6 3.6L FLEX | AWD/RWD | Automatic |
| SXT Plus | Sedan | 2015 | V6 3.6L FLEX | AWD/RWD | Automatic |
Know This Transmission Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:
A quick look at your own vehicle makes sure the right transmission shows up:
- Verify the 8th digit of the VIN is 'G' (3.6L Pentastar V6 engine).
- Physically confirm the vehicle is Rear-Wheel Drive (RWD).
- Locate the metal identification tag on the driver's side of the transmission case and verify the part number is 68276787AA or model is 845RE/8HP45.
- Confirm the transmission has a single, round 16-pin electrical connector.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Fluid transfer pump
- Professional bi-directional scan tool (wiTECH, AlfaOBD, or JScan)
- Digital thermometer / OBD live-data scanner
- Torx bits (T27 and T40)
Budget for these consumables at install:
- ZF Lifeguard 8 fluid or Mopar 8 & 9 Speed ATF (P/N 68218925AA) - approx. 9 to 10 quarts/liters for full fill
- New plastic oil pan assembly (includes integrated filter, pan gasket, and new bolts)
- Front input shaft/torque converter seal
- Transmission cooler-line flush agent
What your vehicle’s computers will need after the swap:
What’s involved: VIN programming, Adaptive Value Reset, and Quick Learn Procedure
The TCM is integrated into the internal valve body and locked to the donor VIN. You must either swap your original Mechatronic unit or reprogram the replacement TCM with your vehicle's VIN using a tool like wiTECH, AlfaOBD, or JScan, followed by a mandatory Quick Learn and Drive Learn procedure.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque converter must be fully seated (three distinct clicks/drops) before bolting to the engine to avoid cracking the front oil pump.
- No dipstick is present. Fluid level must be checked with the vehicle perfectly level, engine running, and fluid temperature strictly between 30°C and 50°C (86°F to 122°F).
- Thermal bypass valve must open during warm-up to purge trapped air from cooler lines before final fluid level check.
- Engine block must have both alignment dowel pins in place to prevent input shaft and front pump wear.
- Mandatory Quick Learn procedure must be performed immediately after clearing adaptives to prevent severe shift quality issues.
Easy to get right once you know them:
- Using incorrect fluid like standard ATF+4 instead of ZF Lifeguard 8 or Mopar 8 & 9 Speed ATF.
- Skipping the VIN programming or Quick Learn procedure, leading to a vehicle that is bricked or stuck in Park.
- Reusing the old warped plastic oil pan and dirty integrated filter.
- Failing to flush the transmission cooler lines, which washes old debris directly into the replacement unit.
- Forcing the bellhousing bolts to draw the engine and transmission together when the torque converter is not fully seated.
Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Reprogram TCM with latest software calibration to address harsh 2-1 downshifts, RPM defaults, and DTCs P0734, P1DCD, P1B13.
🔎 Recommended at install: Clear adaptation memory cells and perform a specific Drive Learn Procedure using a scan tool after replacement.
🔎 Recommended at install: Reprogram TCM to resolve poor shift quality, delayed shifts in hot temperatures, or DTC P1DCD.
🔎 Recommended at install: Dealer software flash to the PCM/TCM.
🔎 Recommended at install: Software updates related to shift logic.
🔎 Recommended at install: Replace mechatronic unit or solenoids if experiencing erratic shifting, gear hunting, or harsh downshifts.
🔎 Recommended at install: Normal behavior below 40°F; smooths out as the vehicle warms up.
Researched from factory recalls, TSBs and OEM service data (reference unit 400-05180-4077088). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2015 Dodge Charger 3.6L 845RE/8HP45: Problems, Identification, and Used Replacement
Identify your 8-speed transmission, diagnose common valve body and shifting failures, and learn when to swap in a used OEM assembly.
Read Full Guide →Related Trouble Codes (OBD-II)
7 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
Mopar: 68276787AA, RL276787AA
Fits Years: 2015
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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