/
/
Parts town. Get real parts faster

Shopping Cart

Skip to NavigationSkip to Content
Loading...
Loading...
USD
Multi-SKU Order
LoginRegister
Parts town. Get real parts faster

Find Equipment Manuals

Loading...
Loading...

get special offers & news from parts town

+52 558.957.7295
Loading...
Loading...
visa
visa
mastercard
mastercard
american-express
american-express
discover
discover
paypal
paypal
© 2026 Parts Town. All rights reserved.
Loading...
visa
visa
mastercard
mastercard
american-express
american-express
discover
discover
paypal
paypal

Stock Up on Real OEM HVAC Parts for the Fall Season! SHOP NOW

Call: +52 558.957.7295
Hvac Parts
TECHTOWN
Track My Order

Email ordering may be delayed due to the Microsoft outage. Ordering on partstown.com is available as usual. Thanks for your patience!

Help Desk

  • Contact Us
  • Shipping
  • Taxes And Fees
  • Returns
  • FAQ

Inside Parts Town

  • About Us
  • Careers
  • Our Difference
  • Resource Center
  • Parts Town Blog
  • techtown
  • International

Technology and Innovations

  • Parts Town App
  • Parts In Town
  • Serial Number Lookup
  • Smart Manuals
  • Website Features
  • Terms of Use
  • Privacy Policy
  • Privacy Request

  1. Home
  2. /
  3. Reznor
  4. /
  5. CAUA 400

Model: CAUA 400

Manuals Available: 7

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Parts Manual

View Manual

Reznor CAUA 400 Parts & Manuals

Reznor CAUA 400 Parts & Manuals

Manufacturer:

Model #:

Reznor

CAUA 400

Air Handler

Air Handler

Part Category

  • Bearings & Bushings(2)
  • Belts, Pulleys & Sheaves(12)
  • Brackets & Retainers(5)
  • Burners(1)
  • Capacitors(1)
  • Caps & Plugs(5)
  • Catches, Latches & Strikes(1)
  • Clamps & Clips(1)
  • Contactors(5)
  • Controls(2)
  • Decals, Labels & Overlays(3)
  • Disconnects, Couplings & Collars(1)
  • Doors & Hardware(2)
  • Elements, Heaters & Platens(1)
  • Fan & Blower Motors(7)
  • Fan Blades & Blower Wheels(3)
  • Filters, Screens & Driers(14)
  • Fuses, Blocks & Holders(4)
  • Gaskets & Seals(11)
  • Handles(1)
  • Holders & Supports(7)
  • Hoses, Pipes & Tubing(2)
  • Ignition Modules(1)
  • Ignitors & Electrodes(1)
  • Nuts, Bolts & Screws(19)
  • Orifices(5)
  • Panels, Covers & Lids(2)
  • Plates(4)
  • Probes & Sensors(2)
  • Pumps & Motors(18)
  • Relays(12)
  • Rods, Shafts & Pins(5)
  • Shields & Guards(3)
  • Switches & Buttons(4)
  • Terminal Blocks(5)
  • Thermostats & High Limits(6)
  • Transformers(5)
  • Valves, Solenoids & Fittings(6)
  • Washers, Rings & Spacers(5)
  • Wires, Cables & Hardware(7)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Part Category

  • Bearings & Bushings(2)
  • Belts, Pulleys & Sheaves(12)
  • Brackets & Retainers(5)
  • Burners(1)
  • Capacitors(1)
  • Caps & Plugs(5)
  • Catches, Latches & Strikes(1)
  • Clamps & Clips(1)
  • Contactors(5)
  • Controls(2)
  • Decals, Labels & Overlays(3)
  • Disconnects, Couplings & Collars(1)
  • Doors & Hardware(2)
  • Elements, Heaters & Platens(1)
  • Fan & Blower Motors(7)
  • Fan Blades & Blower Wheels(3)
  • Filters, Screens & Driers(14)
  • Fuses, Blocks & Holders(4)
  • Gaskets & Seals(11)
  • Handles(1)
  • Holders & Supports(7)
  • Hoses, Pipes & Tubing(2)
  • Ignition Modules(1)
  • Ignitors & Electrodes(1)
  • Nuts, Bolts & Screws(19)
  • Orifices(5)
  • Panels, Covers & Lids(2)
  • Plates(4)
  • Probes & Sensors(2)
  • Pumps & Motors(18)
  • Relays(12)
  • Rods, Shafts & Pins(5)
  • Shields & Guards(3)
  • Switches & Buttons(4)
  • Terminal Blocks(5)
  • Thermostats & High Limits(6)
  • Transformers(5)
  • Valves, Solenoids & Fittings(6)
  • Washers, Rings & Spacers(5)
  • Wires, Cables & Hardware(7)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Reznor 116209 Crank Arm/Linkage, Damper Control

Reznor
  • Mfr Part # 116209
  • Parts Town # REZ116209
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 11813 SMS S/M 10 X 1/2 AB STALGD

Reznor
  • Mfr Part # 11813
  • Parts Town # REZ11813
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 119627 Contactor, 3 Pole, 208/240V 50/60HZ Coil, 25FLA

Reznor
  • Mfr Part # 119627
  • Parts Town # REZ119627
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 120020 5HP 575V 3P MOTOR

Reznor
  • Mfr Part # 120020
  • Parts Town # REZ120020
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 123606 LOCKING WIRE SADLE LWS-A-3-01

Reznor
  • Mfr Part # 123606
  • Parts Town # REZ123606
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 124067 DOOR LATCH KIT #61-99-274-14

Reznor
  • Mfr Part # 124067
  • Parts Town # REZ124067
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 124260 THREADED INSERT5/16

Reznor
  • Mfr Part # 124260
  • Parts Town # REZ124260
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 12489 Rod Bolt, Motor Mounting Assembly

Reznor
  • Mfr Part # 12489
  • Parts Town # REZ12489
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 125346 Motor Support Ring

Reznor
  • Mfr Part # 125346
  • Parts Town # REZ125346
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 12578 Mounting Plate, Blower Motor

Reznor
  • Mfr Part # 12578
  • Parts Town # REZ12578
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 126170 Freezestat, Outside Air Controller, High Ambient Limit, 25-225F, 10FT Cap

Reznor
  • Mfr Part # 126170
  • Parts Town # REZ126170
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 12635 M.H. DAMPER ARM

Reznor
  • Mfr Part # 12635
  • Parts Town # REZ12635
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 12636 M.H. BALL AND SOCKET JOINT

Reznor
  • Mfr Part # 12636
  • Parts Town # REZ12636
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 1333 LOCKWASHER 5/16 IN.

Reznor
  • Mfr Part # 1333
  • Parts Town # REZ1333
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 135202 Pulley/Sheave, Blower, 1" Bore

Reznor
  • Mfr Part # 135202
  • Parts Town # REZ135202
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 13580 Pulley/Sheave, Motor, 5/8" Bore

Reznor
  • Mfr Part # 13580
  • Parts Town # REZ13580
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 13685 Motor, Blower, 115/208-230 Volt, 1 PH

Reznor
  • Mfr Part # 13685
  • Parts Town # REZ13685
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 141570 Fan Blade, Ventor, 2-1/4"

Reznor
  • Mfr Part # 141570
  • Parts Town # REZ141570
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 14226 DAMPER ROD 1/4 X 11

Reznor
  • Mfr Part # 14226
  • Parts Town # REZ14226
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 142711 VIEWPORT RETAINER EEDU

Reznor
  • Mfr Part # 142711
  • Parts Town # REZ142711
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 1438 HEX NUT 3/8"

Reznor
  • Mfr Part # 1438
  • Parts Town # REZ1438
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 147651 TOP/BOTTOM FLUE GASKET

Reznor
  • Mfr Part # 147651
  • Parts Town # REZ147651
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 148696 OUTLET COLLAR FT

Reznor
  • Mfr Part # 148696
  • Parts Town # REZ148696
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 148986 6" SILICONE TUBING

Reznor
  • Mfr Part # 148986
  • Parts Town # REZ148986
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

123