Login   New Account   Shopping Cart
We are open and working our normal schedule.
E-commerce shopping is the safest method of shopping right now during the COVID-19 situation. A family day on the lake enjoying the fresh air and sunshine is a perfect way to get out of the house without worrying about social distancing. For service email sales@perfprotech.com or call 1-405-533-3812.
Performance Product Technologies
PPT Free Shipping International Shipping Options
  • Marine Parts +
  • Product Diagrams +
    • Search by Serial Number
    • Barr Exhaust
    • Mercruiser Engines & Sterndrives
    • Mercury Outboards
    • Mercury Marine (All Products)
    • Sierra Marine Parts
    • Suzuki Accessories (OEM)
    • Suzuki Outboards
    • Velvet Drive Transmissions
    • Yamaha Accessories (OEM)
    • Yamaha Outboards
    • ZF Hurth Transmissions
  • Technical Resources +
    • Technical Library
    • Specifications
    • Videos
    • PPT Blog
  • Contact Us
  • Technical Library
  • Specifications
  • Videos
  • PPT Blog
  • Search by Serial Number
  • Barr Exhaust
  • Mercruiser Engines & Sterndrives
  • Mercury Outboards
  • Mercury Marine (All Products)
  • Sierra Marine Parts
  • Suzuki Accessories (OEM)
  • Suzuki Outboards
  • Velvet Drive Transmissions
  • Yamaha Accessories (OEM)
  • Yamaha Outboards
  • ZF Hurth Transmissions

Mercury Marine Parts Catalog

Find the Parts You're Looking For

You are here: Marine Parts » Mercury Marine Parts Catalog » CLOSED COOLING SYSTEM(454 MAG MPI HORIZON)

CLOSED COOLING SYSTEM(454 MAG MPI HORIZON)

  Ref ID Description Price  
1
HEAT EXCHANGER (#807400A1)
Qty Required For Repair: 1
Minimum Order Qty: 1
$1,555.69
$1,571.36
NS
COVER, Heat Exchanger End (#8M0036623)
Qty Required For Repair: 2
Minimum Order Qty: 1
Supersedes: 814875
Qty Required For Repair: 2
Supersedes: 814875
$80.08
$69.92
NS
GASKET, End Cover (#27-8M0036987)
Qty Required For Repair: 2
Minimum Order Qty: 1
Supersedes: 27-803644, 27-814876
Qty Required For Repair: 2
Supersedes: 27-803644, 27-814876
$17.24
$17.20
NS
BOLT (#10-814877)
Qty Required For Repair: 2
Minimum Order Qty: 1
Qty Required For Repair: 2
$8.25
$8.80
NS
O-RING, Special (#25-8M0039163)
Qty Required For Repair: 2
Minimum Order Qty: 1
Supersedes: 25-814878, 25-8M0033440
Qty Required For Repair: 2
Supersedes: 25-814878, 25-8M0033440
$5.78
$5.90
NS
CAP (#36-8148791)
Qty Required For Repair: 1
Minimum Order Qty: 1
$47.44
$49.20
2
BRACKET ASSEMBLY, Heat Exchanger (#860092A1)
Qty Required For Repair: 1
Minimum Order Qty: 1
$74.25
$351.08
3
PAD (#18431)
Qty Required For Repair: 2
Minimum Order Qty: 1
Qty Required For Repair: 2
$27.56
$24.33
4
SCREW, (.437-14 x 1.750) (#10-91903)
Qty Required For Repair: 1
Minimum Order Qty: 1
$3.14
$3.30
4
SCREW, (.437-14 x 1.00) (#10-47461)
Qty Required For Repair: 1
Minimum Order Qty: 1
$1.40
$1.50
5
WASHER (#12-31263)
Qty Required For Repair: 4
Minimum Order Qty: 5
Qty Required For Repair: 4
Minimum Order Qty: 5
$0.63
$0.70
6
SPACER, (.750 x .250) (#23-905201)
Qty Required For Repair: 2
Minimum Order Qty: 1
Qty Required For Repair: 2
$5.12
$5.60
7
CLAMP, Worm Gear (#54-815504388)
Qty Required For Repair: 2
Minimum Order Qty: 1
Supersedes: 54-59381, 862867A 2, 54-8M2001524, 54-F695920
Qty Required For Repair: 2
Supersedes: 54-59381, 862867A 2, 54-8M2001524, 54-F695920
$20.38
$18.33
8
RECOVERY KIT, Coolant (#71587A10)
Comment: SEE NOTE
Qty Required For Repair: 1
Minimum Order Qty: 1
SEE NOTE
$76.64
$64.92
NS
HOSE, (48.00 Inches Bulk) (#32-774572)
Qty Required For Repair: 1
Minimum Order Qty: 1
$55.44
$49.92
9
BOTTLE, Plastic (#71587A11)
Qty Required For Repair: 1
Minimum Order Qty: 1
$58.91
$52.42
10
CAP (#72058)
Qty Required For Repair: 1
Minimum Order Qty: 1
$7.43
$7.30
11
HOUSING ASSEMBLY, Thermostat (#861188A1)
Qty Required For Repair: 1
Minimum Order Qty: 1
$362.50
$370.08
12
SEAL (#25-8071341)
Qty Required For Repair: 1
Minimum Order Qty: 1
$10.15
$9.70
13
SLEEVE, Hose (#23-52020)
Qty Required For Repair: 1
Minimum Order Qty: 1
NLA
14
PLUG, Pipe (.375-18) Brass (#22-32803)
Qty Required For Repair: 1
Minimum Order Qty: 1
$4.37
$4.70
15
THERMOSTAT (#991551)
Qty Required For Repair: 1
Minimum Order Qty: 1
$30.86
$20.17
16
COVER (#807075A1)
Qty Required For Repair: 1
Minimum Order Qty: 1
$159.43
$156.08
17
SCREW AND LOCKWASHER, (.312-18 x .875) (#10-29198)
Qty Required For Repair: 2
Minimum Order Qty: 5
Qty Required For Repair: 2
Minimum Order Qty: 5
$2.97
$2.90
18
SCREW, (.375-16 x 1.00) (#10-8M0113180)
Qty Required For Repair: 2
Qty Required For Repair: 2
$3.22
19
PLUG, Pipe (.125-27) (#22-328022)
Qty Required For Repair: 1
Minimum Order Qty: 2
Minimum Order Qty: 2
$4.95
$5.50
20
GASKET (#27-530451)
Qty Required For Repair: 1
Minimum Order Qty: 5
Minimum Order Qty: 5
$3.38
$3.70
21
HOSE (#32-807271)
Qty Required For Repair: 1
Minimum Order Qty: 1
$57.67
$51.83
22
HOSE (#32-861306)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 32-807139
Supersedes: 32-807139
$50.33
$45.25
23
HOSE (#32-807141)
Qty Required For Repair: 1
Minimum Order Qty: 1
$45.87
$41.25
24
CLAMP, Worm Gear (#54-815504520)
Qty Required For Repair: 6
Minimum Order Qty: 1
Qty Required For Repair: 6
NLA
25
HOSE, Thermostat Housing To Heat Exchanger (#32-807137)
Qty Required For Repair: 1
Minimum Order Qty: 1
$39.02
$35.08
26
CLAMP, Worm Gear (#54-815504522)
Qty Required For Repair: 2
Minimum Order Qty: 1
Qty Required For Repair: 2
NLA
27
HOSE (#32-8M0158499)
Qty Required For Repair: 1
$45.87
28
CLAMP, Worm Gear (#54-815504528)
Qty Required For Repair: 2
Minimum Order Qty: 1
Qty Required For Repair: 2
NLA
29
HOSE (#32-99520)
Qty Required For Repair: 1
Minimum Order Qty: 1
$21.45
$23.10
30
CLAMP, Worm Gear (#54-815504512)
Qty Required For Repair: 2
Minimum Order Qty: 1
Qty Required For Repair: 2
NLA
31
HOSE (#32-807406)
Qty Required For Repair: 1
Minimum Order Qty: 1
$30.03
$27.08
32
HOSE (#32-807989)
Qty Required For Repair: 1
Minimum Order Qty: 1
NLA
33
HOSE, Fuel Cooler to Transmission Oil Cooler (#32-808045)
Qty Required For Repair: 1
Minimum Order Qty: 1
$48.59
$49.90
34
HOSE (#861411)
Qty Required For Repair: 1
NLA
35
HOSE, (4.00 Inches) (#32-866331)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 32-807694075, 32-807694 40
Supersedes: 32-807694075, 32-807694 40
$9.98
$10.70
36
HOSE, Seawater Pump To T-Fitting (#32-897145)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 32-821415
Supersedes: 32-821415
$27.23
$23.75
37
CLAMP, Worm Gear (#54-815504520)
Qty Required For Repair: 12
Minimum Order Qty: 1
Qty Required For Repair: 12
NLA
38
Y-FITTING (#22-861339T)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 22-861339
Supersedes: 22-861339
NLA
39
HOSE, (44.00 Inches Bulk) (#32-8M0062634)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 32-42850 69
Supersedes: 32-42850 69
$32.26
$33.50
40
CLAMP, Worm Gear (#54-815504512)
Qty Required For Repair: 2
Minimum Order Qty: 1
Qty Required For Repair: 2
NLA
41
SOCKET (#22-861406)
Qty Required For Repair: 1
Minimum Order Qty: 1
$82.09
$81.20
42
FITTING (#22-857175)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 22-861405
Supersedes: 22-861405
$37.21
$60.70
43
CAP (#19-858240)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 861427
Supersedes: 861427
$8.17
$6.60
44
T-FITTING (#861505)
Qty Required For Repair: 1
Minimum Order Qty: 1
Supersedes: 22-861483T, 22-861483
Supersedes: 22-861483T, 22-861483
$6.35
$6.70
45
PLUG KIT, (.500-13) Royal Blue (#22-8M0119211)
Qty Required For Repair: 2
Minimum Order Qty: 5
Qty Required For Repair: 2
Minimum Order Qty: 5
$6.35
$0.00
46
QUAD RING (#25-32509)
Qty Required For Repair: 2
Minimum Order Qty: 10
Qty Required For Repair: 2
Minimum Order Qty: 10
$1.40
$1.50
NS
COVER, Hose Clamp End (#19-8M0074364)
Qty Required For Repair: AR
Minimum Order Qty: 20
Supersedes: 19-8M6500037, 19-807992 3
Minimum Order Qty: 20
Supersedes: 19-8M6500037, 19-807992 3
$2.15
$2.10
-
GASKET SET, Overhaul (454) (#27-811572A94)
Qty Required For Repair: 1
Minimum Order Qty: 1
NLA
To zoom in, move your mouse over the diagram.
MERCRUISER 454 MAG MPI HORIZON AND 8.2L MIE MPI CLOSED COOLING SYSTEM(454 MAG MPI HORIZON)

Notes

1: COOLANT RECOVERY SYSTEM IS SOLD AS A COMPLETE KIT ONLY. THE COMPONENT PARTS CAN BE PURCHASED LOCALLY.

This assembly is found in these models:

  • MERCRUISER > 454 MAG. MPI HORIZON (GEN. VI) GM 454 V-8
  • MERCRUISER > 8.2L MIE MPI (GEN. VI) GM 502 V-8

Request More Information

Contact Us

1-405-533-3812

  • 8002 West 6th Stillwater, OK 74074
  • Business Hours: Mon-Fri 9:00–5:30
  • sales@perfprotech.com

About Us

  • Our Company
  • Our Blog
  • Policies & Terms
  • Sitemap

Follow Us Here

  • Google+
  • Facebook
  • Twitter
  • LinkedIn
  • Youtube
Performance Product Technologies, EnginesRebuild & Exchange, Stillwater, OK

The best source for Mercruiser OEM parts, marine engines, boat & engine parts, accessories, boating supplies, tools, & aquatic sporting goods.

Copyright © 2021 Performance Product Technologies