Which VW part numbers are on the cooler coolant reservoir coolant regulator housing diagram for the Mk3 Golf?

This diagram lists 37 OEM part numbers for the Mk3 Golf. The first three are 1H0 121 422 E, G 011 A8C A8 and G 012 A8D A8.

Which Mk3 Golf years and engines does this diagram cover?

This plate is from the Mk3 Golf 1997 generation (RDW). The factory catalogue records no engine-code restriction on it, so it applies to all engines listed in the factory catalogue for this generation.

Where is the complete Mk3 Golf factory parts catalogue?

The Mk3 Golf Master Parts Catalogue is available in print and as a PDF from Type 19 Specialists at /shop/library/catalogue-mk3-full/. It carries every plate in this catalogue, not just this one.

Cooler coolant reservoir coolant regulator housing — Mk3 Golf Cooling (1997)

Factory title: Volkswagen Golf (1997 - 1998) - Coolant pump

Generation: Mk3 1997 (RDW) Group: Drive cooling Rebuild step 8 Parts: 39 Primary OEM: 1H0 121 422 E, G 011 A8C A8, G 012 A8D A8

Cooler coolant reservoir coolant regulator housing for the Volkswagen Golf Mk3 (1997): factory exploded diagram 121075 from the Volkswagen ETKA parts catalogue, group 11 Drive cooling, listing 37 OEM part numbers across 39 catalogued positions including 1H0 121 422 E, G 011 A8C A8 and G 012 A8D A8. Published by Type 19 Specialists; the complete Mk3 Golf catalogue is in print as the Mk3 Golf Master Parts Catalogue.

Parts on this diagram

This Mk3 Golf plate lists 37 OEM part numbers across 39 numbered positions.

Exploded view from the factory parts catalogue. Click a row in the parts table to highlight its position on this diagram. Click any position on the diagram to scroll to its row.

№	Description	Part number
	Cooler for coolant Reservoir Coolant regulator housing 6-cylinder	—
	Cooler for coolant Reservoir Coolant regulator housing 6-cylinder+AAA	—
(32)	Cover cap G 12 G 12	1H0 121 422 E
(34)	Coolant additive	G 011 A8C A8
(34)	Coolant additive	G 012 A8D A8
(34)	coolant additive, plus Service fluid	G 012 A8F M8
(34)	Coolant additive	G 012 A8D A1
(34)	coolant additive, plus Service fluid	G 012 A8F M1
(34)	coolant additive, plus Service fluid	G 012 A8F M8
1	Coolant regulator housing	021 121 117 A
12	Pipe union	021 121 121 A
13	O-ring 60 X 3,50 60 X 3,50	N 901 368 02
14	Socket head bolt withhexagon socket head M 6 X 18 M 6 X 18	N 014 703 5
15	Socket head bolt with hexagonsocket head (combination) M 6 X 40 M 6 X 40	N 100 922 01
17	Coolant regulator 80 C 80 C	075 121 113 D
19	Pipe union	021 121 133 D
2	Seal	021 121 119 A
20	O-ring 34,5 X 3,55 34,5 X 3,55	N 101 392 01
22	Cooler for coolant 630 X 380 MM 630 X 380 MM	1H0 121 253 BE
22	Cooler for coolant 630 X 380 MM 630 X 380 MM	1H0 121 253 CB
26	hex. hd. self-tap bolt (combi) 6,3 X 19 6,3 X 19	N 905 426 02
26	hex. hd. self-tap bolt (combi) 6,6 X 19-D 6,6 X 19-D	N 905 426 03
28	Coolant expansion tank	021 121 407
29	End cap	357 121 321 C
29	End cap	1H0 121 321 C
29	End cap	1H0 121 321 A
3	Socket head bolt with hexagonsocket head (combination) M 6 X 85 M 6 X 85	N 904 762 01
30	O-ring 28,5 X 3,8 28,5 X 3,8	1H0 121 687
30	O-ring 28,5 X 3,8 28,5 X 3,8	1H0 121 687 A
31	double stud with hexagon drive 3 X 24/M 6 X 15,5 3 X 24/M 6 X 15,5	N 906 140 01
32	Cover cap G 11 G 11	1H0 121 422
34	coolant additive, plus Service fluid	G 012 A8F M1
34	Coolant additive	G 011 A8C A1
4	Socket head bolt withhexagon socket head M 6 X 25 M 6 X 25	N 014 782 1
5	Washer 6,4 X 12,5 X 1,6 6,4 X 12,5 X 1,6	N 011 524 23
7	Bungs	357 121 140
8	O-ring 19,6 X 3,65 19,6 X 3,65	N 903 168 01
9	retaining spring	032 121 142
9	retaining spring	025 121 142

From the Type 19 workshop

Volkswagen Golf Mk3 work in the Type 19 workshop — the same cars these cooling diagrams are drawn from.

Mk2 Golf 16v Kjet Engine - - best they produced? What do you think? The 1980’s hot hatch — the Mk2 Golf 16v engine was the highest volume production Mk2 Golf Volkswagen released.

Fitment and applicability

What this plate covers, as the factory catalogue records it — nothing here is inferred from the part names.

Vehicle: Volkswagen Golf Mk3
Model years: 1997
Generation region: RDW
Generation code: 184
Factory group: 11 Drive cooling
Factory subgroup: 121075

Related factory diagrams

Other published cooling plates for the Mk3 Golf in this catalogue.

Coolant cooling system 1993 - 1996 · subgroup 121050
Air guide aaa aam aba acc adc add azz 1993 - 1996 · subgroup 121080
Cooler coolant reservoirflange 1993 - 1996 · subgroup 121070
Coolant pump aaa 1993 - 1996 · subgroup 121015
Cooler coolant reservoir coolant regulator housing 1993 - 1996 · subgroup 121075
Coolant cooling system 1995 · subgroup 121022
Coolant cooling system 1995 · subgroup 121020
Coolant pump 4 cylinder 1997 · subgroup 121010

The complete Mk3 Golf parts catalogue in print

Questions about this diagram

Which VW part numbers are on the cooler coolant reservoir coolant regulator housing diagram for the Mk3 Golf?: This diagram lists 37 OEM part numbers for the Mk3 Golf. The first three are 1H0 121 422 E, G 011 A8C A8 and G 012 A8D A8.
Which Mk3 Golf years and engines does this diagram cover?: This plate is from the Mk3 Golf 1997 generation (RDW). The factory catalogue records no engine-code restriction on it, so it applies to all engines listed in the factory catalogue for this generation.
Where is the complete Mk3 Golf factory parts catalogue?: The Mk3 Golf Master Parts Catalogue is available in print and as a PDF from Type 19 Specialists at /shop/library/catalogue-mk3-full/. It carries every plate in this catalogue, not just this one.