HVAC/Controls for 2018 GMC Sierra 1500

About GM Parts Center: GMPartsCenter.net is one of the leading GM replacement part and accessory ecommerce websites in the world. We only offer 100% genuine GM parts and accessories at the best prices, we have a huge inventory of parts, and we offer fast, affordable shipping. Find parts for your 2018 GMC Sierra 1500 online or call 855-902-6413 for a free parts look-up.

2018 GMC Sierra 1500

Change vehicle

No. Part # Part # / Description List Price Price
1 84340784 84340784 / Filter Housing

Air Inlet

$76.38 $51.38
2 22989961 22989961 / HVAC Mode Door Lever Link

Link

$26.18 $17.75
3 84322991 84322991 / Seal Kit

$109.49 $64.61
4 22808782 22808782 / Cover Asm-Pass Compt Air Fltr Hsg

$15.93 $10.90
5 23281440 23281440 / Filter-Pass Compt Air

$26.70 $15.89
6 84340792 84340792 / AC & Heater Case

W/ AUTO TEMP CNTRL

$252.73 $168.59
6 84340794 84340794 / AC & Heater Case

W/ O AUTO TEMP CNTRL

$291.10 $194.17
7 84340800 84340800 / Evaporator Core

$212.96 $124.58
8 84104355 84104355 / Expansion Valve

$86.42 $50.99
9 22808762 22808762 / Upper Cover

$58.56 $39.39
10 84418888 84418888 / Heater Core

$104.05 $61.38
11 23412312 23412312 / Motor Asm-Blo

$248.20 $145.20
12 23129022 23129022 / Case Asm-Air Distr

W/ AUTO TEMP CNTRL

$45.50 $30.86
12 84340797 84340797 / Case

W/ O AUTO TEMP CNTRL

$45.25 $30.69
13 23129020 23129020 / HVAC Re-Circulation Door Actuator Lever

Cam

$37.40 $25.37
14 84097837 84097837 / Control Module

Controller

W/ O AUTO TEMP CNTRL

$135.17 $79.08
14 84237325 84237325 / HVAC Temperature Control Panel

Controller

W/ AUTO TEMP CNTRL

$124.40 $73.40
15 22973051 22973051 / Controller Retainer

$11.98 $8.20
16 22808882 22808882 / Actuator Asm,Air Inl Vlv

AIR INLET

$56.95 $33.59
17 22838102 22838102 / Actuator Asm-Mode Vlv

MODE

$56.95 $33.59
18 22808876 22808876 / Actuator Asm,Temp Vlv

TEMP VALVE

$56.95 $33.59
19 22808877 22808877 / HVAC Blend Door Lever

Gear

UPPER

$15.41 $9.25
20 22838099 22838099 / HVAC Blend Door Lever

Gear

LOWER

$15.41 $9.25
21 15138625 15138625 / Hose-A/C Evpr & Blo Mdl Drn

$8.52 $5.20
22 84104347 84104347 / HVAC System Wiring Harness

Harness

W/ AUTO TEMP CNTRL, W/ EASSIST

$145.74 $97.22
22 84104345 84104345 / HVAC System Wiring Harness

Harness

W/ AUTO TEMP CNTRL, W/ O EASSIST

$102.72 $69.09
22 23281486 23281486 / HVAC System Wiring Harness

Harness

W/ O AUTO TEMP CNTRL

$159.84 $106.60
23 23154698 23154698 / In-Car Sensor

Temp Sensor

$26.53 $15.78
No. Part # Part # / Description List Price Price
N/A 23486622 23486622 / Dash Control Unit

SIERRA; W/ REAR DEFOGGER; W/ O ATC

$188.90 $110.51
N/A 23449074 23449074 / Dash Control Unit

SIERRA; W/ O REAR DEFOGGER; W/ O POWER MIRROR

- -
No. Part # Part # / Description List Price Price
N/A 23449156 23449156 / Dash Control Unit

SIERRA; W/ O REAR DEFOGGER; W/ POWER MIRROR

- -
N/A 23448156 23448156 / Dash Control Unit

SIERRA; W/ REAR DEFOGGER; W/ ATC

$79.57 $56.33