Which VW part numbers are on the cooler coolant reservoirthermostatthermal switch diagram for the MK2 Golf?

This diagram lists 49 OEM part numbers for the MK2 Golf. The first three are N 906 298 03, N 100 987 01 and 191 121 343.

Which MK2 Golf years and engines does this diagram cover?

This plate is from the MK2 Golf 1990 - 1991 generation (RDW). The parts on it carry the engine codes 2G, HZ and NZ.

Where is the complete MK2 Golf factory parts catalogue?

The Mk2 Golf Master Parts Catalogue is available in print and as a PDF from Type 19 Specialists at /shop/library/catalogue-mk2-full/. It carries every plate in this catalogue, not just this one.

Cooler coolant reservoirthermostatthermal switch — MK2 Golf Cooling (1990 - 1991)

Factory title: Volkswagen Golf (1990 - 1992) - Coolant pump

Generation: MK2 1990 - 1991 (RDW) Group: Drive cooling Rebuild step 8 Parts: 50 Primary OEM: N 906 298 03, N 100 987 01, 191 121 343

Cooler coolant reservoirthermostatthermal switch for the Volkswagen Golf Mk2 (1990 - 1991): factory exploded diagram 21000 from the Volkswagen ETKA parts catalogue, group 11 Drive cooling, listing 49 OEM part numbers across 50 catalogued positions including N 906 298 03, N 100 987 01 and 191 121 343. Parts on this plate carry the engine codes 2G, HZ and NZ. Published by Type 19 Specialists; the complete MK2 Golf catalogue is in print as the Mk2 Golf Master Parts Catalogue.

Parts on this diagram

This MK2 Golf plate lists 49 OEM part numbers across 50 numbered positions.

9 hotspots (partial)

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 Reservoirthermostatthermal switch 1.05/1.3 Ltr. HZ,NZ,2 G 1.05/1.3 Ltr. HZNZ2G	—
-	hex.hd. thread cutting bolt 7 X 20 7 X 20	N 906 298 03
-	Spring band clamp F 1 G-M-000 001>> 13 X 15 13 X 15	N 100 987 01
-	Cap closure F 1 G-M-000 001>> 7,5 MM 7,5 MM	191 121 343
-	hex hd. panel screw, shoulder H 7 X 20 H 7 X 20	N 906 298 01
-	Cap closure 20 MM 20 MM	4D0 121 324
(28)	Coolant concentrate	G 013 A8J M8
(28)	Coolant additive	G 011 A8C A8
(28)	coolant additive, plus	G 012 A8F A8
(2A)	thermostat housing F 1 G-M-000 001>> also use: 191 121 343 N 100 987 01 N 906 298 03 NZ 191 121 343 N 100 987 01 N 906 298 03 NZ	030 121 117 M
(2A)	thermostat housing F 1 G-M-000 001>> also use: 191 121 343 N 100 987 01 NZ 191 121 343 N 100 987 01 NZ	030 121 117 F
(2A)	thermostat housing F >> 1 G-L-990 000 NZ NZ	030 121 117 C
(2A)	thermostat housing F 1 G-M-000 001>> also use: 191 121 343 N 100 987 01 N 906 298 03 HZ,2 G 191 121 343 N 100 987 01 N 906 298 03 HZ2G	030 121 117 L
(2A)	thermostat housing F 1 G-M-000 001>> also use: 191 121 343 N 100 987 01 HZ,2 G 191 121 343 N 100 987 01 HZ2G	030 121 117 E
(8A)	Hexagon bolt M 8 X 55 M 8 X 55	N 010 352 10
12	Cooler for coolant 430 MM 430 MM	171 121 253 CJ
13	Retaining plate	191 121 265 C
14	Retaining plate	191 121 265 B
15	Retaining plate for models with battery: 54 A/63 A 54 A/63 A	191 121 271
16	Spring washer 6 6	N 012 226 5
17	Hexagon bolt M 6 X 18 M 6 X 18	N 010 216 12
18	Hexagon bolt M 6 X 32 M 6 X 32	N 010 305 4
19	Rubber washer	171 121 276 D
1A	Coolant regulator	030 121 113
21	End cap	357 121 321 C
21	End cap	1H0 121 321 A
21	End cap	1H0 121 321 C
22	O-ring 29,5 X 3,8 29,5 X 3,8	1H0 121 687
22	O-ring 28,5 X 3,8 28,5 X 3,8	1H0 121 687 A
23	Coolant expansion tank	1H0 121 407 A
24	Retainer for reservoir	191 121 409 C
25	hexagon nut, self-locking M 8 M 8	N 900 744 01
25	hexagon nut, self-locking M 8 M 8	N 900 744 04
26	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
26	stud with hex. hd.	357 121 416
27	Cover cap	357 121 422
28	Coolant concentrate	G 013 A8J M1
28	Coolant additive	G 011 A8C A1
28	coolant additive, plus	G 012 A8F A1
2A	thermostat housing F >> 1 G-L-990 000 HZ,2 G HZ2G	030 121 117 D
3A	O-ring	059 121 119
3A	seal ring 50 X 4 50 X 4	038 121 119 B
4A	Pipe union	030 121 121 B
4A	Pipe union	030 121 121
5A	O-ring 42,5 X 3 42,5 X 3	030 121 119
6A	Hexagon bolt M 6 X 18 M 6 X 18	N 010 216 12
6B	Spring washer 6 6	N 012 226 5
8A	Hexagon bolt M 8 X 32 M 8 X 32	N 010 332 4
8B	Spring washer 8 X 15 X 0,5 8 X 15 X 0,5	N 012 229 3
8B	Spring washer B 8 X 15 B 8 X 15	N 012 241 10

From the Type 19 workshop

Volkswagen Golf Mk2 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 Mk2
Model years: 1990 - 1991
Generation region: RDW
Generation code: 110
Engine codes on this plate: 2G, HZ, NZ
Variant tags: petrol_8v_base
Factory group: 11 Drive cooling
Factory subgroup: 21000

Related factory diagrams

Other published cooling plates for the MK2 Golf in this catalogue.

Cooler coolantflangethermal switch 1984 · subgroup 22000
Coolant hoses coolant pipe reservoir 1984 · subgroup 18000
Coolant pump 1984 · subgroup 15000
Coolant hoses coolant pipe reservoir 1984 · subgroup 17000
Cooler coolantthermostatthermal switch 1984 · subgroup 21000
Air guide 1984 · subgroup 23000
Coolant hoses coolant pipe reservoir k jetronic 1984 · subgroup 19000
Coolant hoses coolant pipe reservoir k jetronic 1986 · subgroup 20000

The complete MK2 Golf parts catalogue in print

Questions about this diagram

Which VW part numbers are on the cooler coolant reservoirthermostatthermal switch diagram for the MK2 Golf?: This diagram lists 49 OEM part numbers for the MK2 Golf. The first three are N 906 298 03, N 100 987 01 and 191 121 343.
Which MK2 Golf years and engines does this diagram cover?: This plate is from the MK2 Golf 1990 - 1991 generation (RDW). The parts on it carry the engine codes 2G, HZ and NZ.
Where is the complete MK2 Golf factory parts catalogue?: The Mk2 Golf Master Parts Catalogue is available in print and as a PDF from Type 19 Specialists at /shop/library/catalogue-mk2-full/. It carries every plate in this catalogue, not just this one.