47RE Deep Pan: Stock vs Mag-Hytec vs HD Aluminum

A deep pan on your 47RE is one of the cheapest cooling and capacity upgrades you can make. Heres how Stock vs Mag-Hytec vs HD aluminum compare for tow rigs and tuned Cummins.

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What a deep pan does

  • Adds 2-4 quarts fluid capacity
  • More fluid = more thermal mass
  • Cools trans 10-30F under load
  • Larger magnet area catches more debris
  • Often includes drain plug for easier service

Stock 47RE pan

Specs:

  • Stamped steel
  • OEM Mopar shallow design
  • 13-quart capacity (with stock pan)
  • ~$30-$60 replacement

    • Pros:

  • Cheapest option
  • Direct fit
  • No mods

    • Cons:

  • No deep capacity
  • Small magnet
  • No drain plug (some years)
  • Prone to dent damage on rocks

    • Mag-Hytec deep pan

    Specs:

  • Cast aluminum
  • 3+ quart additional capacity
  • Built-in cooling fins
  • Drain plug included
  • Larger magnet (often multiple)
  • $280-$450 part

    • Pros:

  • Top-tier cooling improvement
  • Built-in finning + thermal mass
  • Drain plug for easy service
  • Multiple magnets
  • Lifetime warranty

    • Cons:

  • Most expensive option
  • Some HD shop pricing higher
  • Heavy (15+ lbs)

    • Best for:

  • HD tow rigs
  • Tuned Cummins
  • Drag race trucks
  • Hot climate operation

    • BD Diesel deep pan

    Specs:

  • Cast aluminum
  • 2 quart additional capacity
  • Built-in finning
  • Drain plug
  • $200-$350 part

    • Pros:

  • Solid mid-tier option
  • BD warranty
  • Lifetime guarantee

    • Cons:

  • Less capacity than Mag-Hytec
  • Single magnet only

    • Best for:

  • Light-to-medium tow
  • Daily HD use
  • BD ecosystem buyers

    • SunCoast deep pan

    Specs:

  • Cast aluminum
  • 2-3 quart additional capacity
  • Internal baffling
  • Drain plug
  • $220-$380 part

    • Pros:

  • SunCoast quality control
  • Internal baffling prevents fluid starvation
  • Aggressive cooling fins

    • Cons:

  • Mid-tier price
  • Less mass than Mag-Hytec

    • Generic HD aluminum pans

    Specs:

  • Cast or stamped aluminum
  • 1-3 quart additional capacity
  • Drain plug usually
  • $80-$200 part

    • Pros:

  • Cheap entry to deep pan world
  • Drain plug benefit

    • Cons:

  • Quality varies wildly
  • Often no finning
  • Smaller magnets
  • Limited warranty

    • Head-to-head ratings

    Best cooling capacity:

  • Mag-Hytec (winner)

    • Best value:

  • BD Diesel (solid mid-tier)

    • Best for race trucks:

  • SunCoast (anti-starvation baffles)

    • Cheapest acceptable upgrade:

  • Generic HD aluminum

    • Cooling impact under tow load

    Stock pan tow temp:

  • 220-260F (HD tow scenario)

    • BD deep pan:

  • 190-220F
  • 20-30F lower than stock

    • Mag-Hytec deep pan:

  • 180-200F
  • 30-50F lower than stock

    • Mag-Hytec + aux cooler:

  • 160-180F
  • Best HD tow cooling solution

    • Installation

    Drain trans:

  • Drain pan plug (if stock has one)
  • Or loosen pan bolts to drain
  • 13 qts come out

    • Remove stock pan:

  • 14 bolts (varies year)
  • Pry corners loose
  • Replace pan gasket

    • Install deep pan:

  • New gasket (some kits include)
  • Use proper torque sequence
  • Spec: 7-12 ft-lb in cross pattern

    • Refill:

  • 13 qts + extra for deep pan capacity
  • 2-3 extra qts depending on pan
  • Check level cold then hot

    • Cost

    DIY stock pan replacement:

  • Pan: $30-$60
  • Gasket: $10-$25
  • Filter: $15-$30
  • Fluid (13 qts ATF+4): $100-$160
  • Total: $155-$275

    • DIY Mag-Hytec upgrade:

  • Pan: $280-$450
  • Gasket: $10-$25
  • Filter (HD deep): $30-$50
  • Fluid (15+ qts ATF+4): $120-$200
  • Total: $440-$725

    • DIY BD deep pan:

  • Pan: $200-$350
  • Gasket: $10-$25
  • Filter: $25-$45
  • Fluid (14+ qts): $110-$180
  • Total: $345-$600

    • Pair with aux cooler for best results

    • Deep pan + aux cooler = trans temp 160-180F under load
    • Reduces clutch wear by ~50%
    • Doubles fluid service interval
    • Critical for tuned Cummins reliability

    What kills 47RE pans

    • Rock damage (off-road)
    • Cooler line leak that lowers fluid level
    • Skipping service (sludge buildup)
    • Old fluid (varnish on internals)

    Recommendation

    Stock truck, light use:

  • Replace with stock pan
  • $155-$275

    • Tow rig (under 12k lbs):

  • BD or SunCoast deep pan
  • $345-$600

    • HD tow rig (over 12k lbs) or tuned:

  • Mag-Hytec deep pan
  • $440-$725
  • Best long-term ROI

    • Race truck:

  • SunCoast (anti-starvation)
  • Or Mag-Hytec custom

    • Need 47RE deep pan, aux cooler, or rebuild parts? Shop our 47RE catalog. Mag-Hytec, BD, SunCoast deep pans, complete rebuild kits. Free shipping over $70.

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