Genie PCG GCG350 H2000 1020L 2020L Parts

Genie Chain Glide Replacement Parts — PCG, GCG350, H2000, 1020L and 2020L

Parts and exploded-view diagrams for the Genie Chain Glide AC chain drive platform: PCG400, PCG600, PCG450, PCG650, PCG500ML, PCG700ML, PCG700FN, GCG350, GCG350L, GCG350ML, H2000C, H2000C-1, H2000C-THDS, 2020C, 2020CT, Aladdin 1020L and ChainLift 2020L.

Read this before ordering. Chain Glide is a 1990s platform and Genie has discontinued a large part of it. The motor, front panel, light socket, light lens, drive module and the 239-pitch chain are no longer manufactured in any form — there is no substitute and no service number. What is still available is the chassis, gear box internals, inner slide, capacitor, boards, covers and the complete rail hardware. Rows below marked no longer available are listed so you can identify the part and confirm the number; they cannot be ordered.

ML vs non-ML decides three parts. ML models (GCG350ML, PCG500ML, PCG700ML, 1020L, 2020L, H2000C) use magnetic limits: 6-terminal control board and the inner slide with magnet. Non-ML models (GCG350, GCG350L, PCG400, PCG600, PCG450, PCG650) use a 3-terminal board and the slide without magnet. Check which board is in your head before ordering.

Power Head Parts

Genie Chain Glide PCG GCG350 H2000 1020L 2020L power head exploded view parts diagram
Ref Part Number Description
1A 33483S.S Motor Cover, retail gray — GCG350, GCG350L
1A 34526R.S Motor Cover, pro gray — GCG350ML, PCG500ML, PCG700ML
1A 35573A.S Motor Cover — Aladdin 1020L, ChainLift 2020L, H2000C (no longer available)
1B — Front Panel Assembly — obsolete, no service part number
1D 33221A.S Motor Shaft Bushing (motor assembly itself is obsolete)
1D 33222A.S Motor Washer, PM
1E 35616R.S Control Board, 6-terminal ML, dual frequency — the current board for ML models
1E 36190S.S Control Board, 6-terminal ML (no longer available — use 35616R.S)
1E 36190T.S Control Board, 3-terminal, non-ML models (no longer available)
1E 20380S Control Board, 6-terminal ML, early — superseded by 36190S.S (no longer available)
1E 20380R Control Board, 3-terminal, early — superseded by 36190T.S (no longer available)
1F 18004B.S Capacitor, 1/3 HP, 50 MFD
1G 38252A.S Opto-Wheel, service replacement
1G 33356A.S Opto-Wheel, original (no longer available — use 38252A.S)
1H 34516R.S Inner Slide, ML models — with magnet
1H 33677A.S Inner Slide, non-ML models — without magnet
1H 35263R Inner Slide Retrofit Kit, early tall rail models (no longer available)
1J 33361A.S Chain, 239 Pitch (no longer available)
1J 080884.0003 Connecting Link, #41 chain (master link)
1J Masterlink 41 Master Link, #41 chain — aftermarket
1J X-41SS-ML Master Link, #41 chain — stainless steel
1K 32989A.S Circuit Board Bracket
1L 34520A.S Drive Module (no longer available)
1M — Terminal Strip — not stocked
1N 24501D04.S Screw, #8 x 3/4" self-tapping hex washer head
1N 8706E04.S Ground Screw, #8-32 x 3/8"
1P 33759A.S Stop, Shock Absorber
1Q 33323A.S Motor Mount Bracket
1X 33763B.S Chassis
49 — Light Lens Cover — obsolete, no service part number
— 34322A.S Light Socket (no longer available)
— 20449R.S Gear Housing Cover, with bushing
— 33353A.S Drive Shaft
— 33223A.S Bushing, Drive Shaft
— 27089A.S Thrust Washer, Drive Shaft
— 27087A.S Motor Thrust Washer
— 33350A.S Drive Sprocket
— 33220A.S Sprocket Bushing (no longer available)
— 27096A.S Drive Gear (no longer available)
— 33352A.S Chain Stripper
— 33225A.S Chain Stripper Spacer
— 33045A.S Chain Guide
— 33224A.S Chain Guide Spacer
— 24311B17.S Retaining Ring
— 33367B04.S Screw, 1/4-20
— 28043A04.S Screw, #8-32 x .375 self-tapping (lens cover)
— 9541C.S Strain Relief
— 33451A Power Cord and Plug

1-Piece Rail Hardware

Genie Chain Glide 1-piece rail hardware exploded view parts diagram
Ref Part Number Description
1 — Power Head Assembly — see the Power Head table above
2 — Rail Assembly, 1-piece — not available separately
3 — Rail, 1-piece — not available separately
11 34516R.S Carriage / Inner Slide, ML models with magnet
11 33677A.S Carriage / Inner Slide, non-ML models without magnet
12 33467A04 Rail Strap
12 34540A Rail Strap, 2-bolt
13 34538R Limit Switch OPEN (up), ML models
13 20417R.S Up Limit Lead, grey wire
14 34538S Limit Switch CLOSE (down), ML models
14 20418R.S Down Limit Lead, brown wire
— 20113R Limit Switch with screw, non-ML models
15 21123C Emergency Release Cord, 56.5"
15 21123F.S Emergency Release Cord — 7, 8 and 10 ft door models
15 21123B Emergency Release Cord, 45" — superseded by 21123F.S
16 21122A Emergency Release Knob
17 — Emergency Release Tag — not stocked
18 35421A Header Bracket — current
18 22668A04 Header Bracket, earlier — superseded by 35421A
20 19792A04 Door Bracket
20 1979A04 Door Bracket, zinc
23 26012D Straight Door Arm
26 26013D Curved Door Arm
— 34542A Hair Pin
— 8706H04 Screw, #6-32 x 1/2"

3-Piece Rail Hardware

Genie Chain Glide 3-piece rail hardware exploded view parts diagram

The 3-piece rail uses the same carriage, limits, release, brackets and door arms as the 1-piece rail above. The parts below are what the 3-piece rail adds.

Ref Part Number Description
4 20468R Rail Assembly, 3-piece — complete set (first, middle and end sections)
5 — First Rail Section — supplied only in the 20468R set
6 — Middle Rail Section — supplied only in the 20468R set
7 — End Rail Section — supplied only in the 20468R set
8 33744A04 Rail Clamp — GCG350, H2000, 1020L, 2020L
8 21019B04 Rail Clamp — PCG and early GCG350
9 33760A04 Bolt, 1/4"-20 x 5/8" hex head — 12 required on 3-piece, 4 on 1-piece
10 34121B05 Nut, 1/4"-20 hex flange — 12 required on 3-piece, 4 on 1-piece

Fasteners

Genie Chain Glide rail and installation fasteners identification diagram, shown full size

Shown full size in the diagram above so you can match a fastener against the drawing before ordering.

Ref Part Number Description
9 33760A04 Bolt, 1/4"-20 x 5/8"
10 34121B05 Nut, 1/4"-20 hex flange
10 24121B05 Nut, 1/4"
22 8091B04 Lag Screw, 1/4" x 2"
22 8091A04 Lag Screw, 5/16" x 2"
24 5987F04 Clevis Pin
25 606E04 Cotter Pin
27 5973Q04 Bolt, 3/8"-16 x 7/8" hex head
28 24121D05 Nut, 3/8"-16 hex flange
39 8094H04 Machine Screw, #8-32 x 1"
41 24222A Wire Clip
41 33762A Wire Clip
42 605879.0001 Self-Drilling Screw, 1/4"-20 x 3/4"
46 080105.0506 Bolt, 5/16"-18 x 3/4"
47 24121C05 Nut, 5/16"-18
— 3359Q06 Carriage Bolt, 1/4" x 2"

Accessories, Safety Sensors and Controls

Genie Chain Glide accessories, Safe-T-Beam sensors, wall controls and remote identification diagram
Ref Part Number Description
29 — Bell Wire — not stocked; any 2-conductor 22 AWG bell wire works
30 — Insulated Staple — not stocked
32 39165R Wall Console, GBWCSL2-BX — replaces the original wall button and console
34 — Entrapment Warning Label — not stocked
35 37220R Safe-T-Beam Sensor, green LED — supplied as a source and sensor pair
36 37220R Safe-T-Beam Source, red LED — supplied as a source and sensor pair
37 — Safe-T-Beam Bracket — supplied with the 37220R sensor kit
38 G3T-BX Intellicode 3-Button Remote Control, dual frequency
38 G1T-BX Intellicode 1-Button Remote Control
— 42368R GK2-P Wireless Keypad — current
— GK-BX Intellicode Wireless Keypad — superseded by 42368R
— LMLED1 LED Bulb, vibration-rated for garage door openers

Not sure which board or slide your unit takes? Pull the cover and count the terminals on the control board — six terminals means an ML head, three means non-ML. Call us if you need help identifying a part before you order.