/
/








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
We are ready to help!

We are ready to help!

We offer customer service support in Spanish

Flat rate shipping anywhere in Mexico $49.99

Flat rate shipping anywhere in Mexico $49.99

Inclusive of duties and brokerage.

Find the parts you need to fix equipment!

Find the parts you need to fix equipment!

Based on data from techs, powered by AI!

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. Lochinvar
  4. /
  5. APN400-600

Part Category

  • Bezels(3)
  • Burners(5)
  • Catches, Latches & Strikes(1)
  • Controls(1)
  • Conversion Kits(2)
  • Decals, Labels & Overlays(1)
  • Disconnects, Couplings & Collars(2)
  • Doors & Hardware(3)
  • Fan & Blower Motors(8)
  • Gaskets & Seals(15)
  • Gauge Glass(1)
  • Gauges & Thermometers(1)
  • Hinges(1)
  • Hoses, Pipes & Tubing(1)
  • Ignitors & Electrodes(2)
  • Insulation(3)
  • Knobs & Dials(1)
  • Nuts, Bolts & Screws(1)
  • O-Rings(2)
  • Probes & Sensors(10)
  • Pumps & Motors(1)
  • Relays(3)
  • Switches & Buttons(5)
  • Transformers(1)
  • Valves, Solenoids & Fittings(16)
  • Washers, Rings & Spacers(2)
  • Wires, Cables & Hardware(3)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Part Category

  • Bezels(3)
  • Burners(5)
  • Catches, Latches & Strikes(1)
  • Controls(1)
  • Conversion Kits(2)
  • Decals, Labels & Overlays(1)
  • Disconnects, Couplings & Collars(2)
  • Doors & Hardware(3)
  • Fan & Blower Motors(8)
  • Gaskets & Seals(15)
  • Gauge Glass(1)
  • Gauges & Thermometers(1)
  • Hinges(1)
  • Hoses, Pipes & Tubing(1)
  • Ignitors & Electrodes(2)
  • Insulation(3)
  • Knobs & Dials(1)
  • Nuts, Bolts & Screws(1)
  • O-Rings(2)
  • Probes & Sensors(10)
  • Pumps & Motors(1)
  • Relays(3)
  • Switches & Buttons(5)
  • Transformers(1)
  • Valves, Solenoids & Fittings(16)
  • Washers, Rings & Spacers(2)
  • Wires, Cables & Hardware(3)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Model: APN400-600

Manuals Available: 2

Installation & Operation Manual

View Manual

Parts Manual

View Manual

Lochinvar APN400-600 Parts & Manuals

Lochinvar APN400-600 Parts & Manuals

Manufacturer:

Model #:

Lochinvar

APN400-600

Aquas Commercial Pool Package

Aquas Commercial Pool Package

Lochinvar 100189174 K,LP CONVERSION,FTXL

Lochinvar
  • Mfr Part # 100189174
  • Parts Town # LOC100189174
  • Quantity0

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

Lochinvar 100189175 KITLPCONVERSIONFTX600-850

Lochinvar
  • Mfr Part # 100189175
  • Parts Town # LOC100189175
  • Quantity0

Out of Stock, backorders usually ship in 13-15 days.

Lochinvar 100189213 K,AIR INLET,FTX

Lochinvar
  • Mfr Part # 100189213
  • Parts Town # LOC100189213
  • Quantity0

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

Lochinvar 100189214 K,AIR INLET,FTX

Lochinvar
  • Mfr Part # 100189214
  • Parts Town # LOC100189214
  • Quantity0

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

Lochinvar 100189217 K,BEZEL ASSY,DISPLAY,FTX

Lochinvar
  • Mfr Part # 100189217
  • Parts Town # LOC100189217
  • Quantity0

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

Lochinvar 100189386 K,GAS VALVE,LP,FTX850

Lochinvar
  • Mfr Part # 100189386
  • Parts Town # LOC100189386
  • Quantity0

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

Lochinvar 100189387 K,GAS VALVE,LP,FTX725

Lochinvar
  • Mfr Part # 100189387
  • Parts Town # LOC100189387
  • Quantity0

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

Lochinvar 100189388 K,GAS VALVE,LP,FTX600

Lochinvar
  • Mfr Part # 100189388
  • Parts Town # LOC100189388
  • Quantity0

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

Lochinvar 100189389 Gas Valve Kit, Natural, 24VAC, 50/60HZ, FTX850

Lochinvar
  • Mfr Part # 100189389
  • Parts Town # LOC100189389
  • Quantity0

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

Lochinvar 100189390 K,GAS VALVE,NAT,FTX725

Lochinvar
  • Mfr Part # 100189390
  • Parts Town # LOC100189390
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

Lochinvar 100189391 K,GAS VALVE,NAT,FTX600

Lochinvar
  • Mfr Part # 100189391
  • Parts Town # LOC100189391
  • Quantity0

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

Lochinvar 100189392 K,GAS VALVE,NAT/LP,FTX500

Lochinvar
  • Mfr Part # 100189392
  • Parts Town # LOC100189392
  • Quantity0

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

Lochinvar 100189393 K,GAS VALVE,NAT/LP,FTX400

Lochinvar
  • Mfr Part # 100189393
  • Parts Town # LOC100189393
  • Quantity0

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

Lochinvar 100189406 K,PLATE, FAN HEX ASSY,FTX725/850

Lochinvar
  • Mfr Part # 100189406
  • Parts Town # LOC100189406
  • Quantity0

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

Lochinvar 100189407 K,PLATE, FAN HEX ASSY,FTX600

Lochinvar
  • Mfr Part # 100189407
  • Parts Town # LOC100189407
  • Quantity0

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

Lochinvar 100189408 K,PLATE, FAN HEX ASSY,FTX400/500

Lochinvar
  • Mfr Part # 100189408
  • Parts Town # LOC100189408
  • Quantity0

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

Lochinvar 100189409 K,DOOR,HEX ASSY,FTX725-850

Lochinvar
  • Mfr Part # 100189409
  • Parts Town # LOC100189409
  • Quantity0

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

Lochinvar 100189410 K,DOOR,HEX ASSY,FTX400-600

Lochinvar
  • Mfr Part # 100189410
  • Parts Town # LOC100189410
  • Quantity0

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

Lochinvar 100208152 K,GAUGE,T&P,0-75PSI,50-320F 2-1/2X3/8

Lochinvar
  • Mfr Part # 100208152
  • Parts Town # LOC100208152
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

Lochinvar 100208242 K,SWITCH,ON/OFF,W/I-O SYMBOL

Lochinvar
  • Mfr Part # 100208242
  • Parts Town # LOC100208242
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

Lochinvar 100208308 Door Catch

Lochinvar
  • Mfr Part # 100208308
  • Parts Town # LOC100208308
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

Lochinvar 100208447 K,PRESS.RELIEF VALVE 3/4-30

Lochinvar
  • Mfr Part # 100208447
  • Parts Town # LOC100208447
  • Quantity0

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

Lochinvar 100208454 Pressure Relief/Safety Valve, 50PSI, 3/4"

Lochinvar
  • Mfr Part # 100208454
  • Parts Town # LOC100208454
  • Quantity0

Out of Stock, backorders usually ship in 8-10 days.

Lochinvar 100208561 K,SENSOR FLUE

Lochinvar
  • Mfr Part # 100208561
  • Parts Town # LOC100208561
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

234