Page 770 - 2021 Sierra Catalog

18-6457
COMPOSITE PULLEY Replaces: 807757T
3" OD Serpentine for 13/16" width belt For: Late model GM V6 & V8 engines
18-3506 CIRCULATING PUMP
Replaces: 46-879194401
For: V6 MCM SN: 1A063240 (2007), Newer 4.3L w/o water bypass hole
- CURRENT
18-3577-2
CIRCULATING WATER PUMP (Bi-Directional)
Replaces: 67859, 17670, 811573, 850454, 8504541, 878342, 850454002, 59972, 54534,
49139, F6269358, FI1100997, FI1101053 For: Big block GM engines
18-3573
CIRCULATING WATER PUMP All 8.1L big-block GM engines
Replaces: 883514, 883925
For: Engines with composite timing cover
18-3593
WATER PUMP
Replaces: 33957, 37369, 52353, 65142, 65142A1, 814755, 880817, 884727, F2774666, FI1100785, FI1101079
Late Model 4 cyl GM engines requiring hose fitting, GM Inline (4 & 6 Cyl.)
18-3599-2
CIRCULATING WATER PUMP
Replaces: 60658, 811841,
850399, 8503991, 17437, 878341, 850399002, 54793, 52226, 37951, 35341, FI1101292,
FI1101208, FI1100742
For: GM V-6 & small block V-8 engines
18-3007 18-3007-10➀ IMPELLER
Replaces: 47-89983, 4789983T For 60 HP
18-3016-1
IMPELLER KIT
with gasket
Replaces: 47-862232A2, 8M0104229
For: Late-model Bravo & High Performance. Includes 350 Mag., 4.3L., 496 Mag., 5.0L., 8.1S and MX 6.2L
18-3017
18-3017-10➀
IMPELLER
Replaces: 47-89984, 47-899842, 47-89984T3, 47-89984T4, 47-899844, 47-30221, 47-65960,
47-85460
For all #1, R, MR, Alpha Units thru S/N D494568.
Also for raw water pump on: 190 IB S/N 1564539-1720903 225 IB S/N 1539620-2278646
18-3056 18-3056-10➀ IMPELLER Replaces: 47-43026-2 For: Alpha I-Generation 2
S/N D494569 & Above Mercruiser Vazer
18-3087
IMPELLER
Replaces: 47-59362, 47-59362T
18-3109
WATER TUBE GUIDE
Replaces: 23-29804, 23-29804T, 23-52928 (used with 18-3116 Housing)
18-3110
WATER PUMP HOUSING BUSHING
Replaces: 26-38970, 26-36557A1, 26-29677 (Part of 18-3116 Housing)
18-3114 INSERT CUP
Replaces: 48752, 48752T (Part of 18-3116 Housing)
➀ Discount shop pack of 10 - Priced per package
752
I/O — MERCRUISER - Cooling System