Marine Manifolds and Risers
Find the matching manifold, spacer and riser/elbow for your engine!
Manifold | Spacer | Riser
Choose your engine size and brand to find the products you need.
Step 1: Select Engine*
Step 2: Select Engine Brand*
3.5” Outlet Exhaust Riser
HGE 2027
OEM # 53-2027
$308
3” Outlet Exhaust Riser
HGE 2018
OEM # 53-2018
Sierra # 18-1907
20-0102
$260
3” Outlet Exhaust Riser
HGE 0082
Sierra # 18-1999
20-0082
$307
Exhaust Manifold
HGE 1-81
OEM # 53-2008
Sierra # 18-1986
FM-1-83
$517
Exhaust Manifold
HGE 9011
OEM # 89011, 807078
Sierra # 18-1957-2
MC-1-89011
$551
Exhaust Manifold
HGE 4035
OEM # 3852374, 914035, 3857723
Sierra # 18-1986
OMC-1-914035
$499
Exhaust Riser
HGE 5384
OEM # 855384
Sierra 18-1935
VO-20-855384
$314
Exhaust Manifold
HGE 5804
OEM # 835804
Sierra # 18-1931
VO-1-835804
$647
Exhaust Manifold
HGE 5735M
OEM # 865735
Sierra # 18-1943
MC-1-865735
$680
Exhaust Manifold
HGE 7114
OEM # 87114, 860246
Sierra # 18-1953-2
MC-1-87114
$420
Exhaust Riser
HGE 3784M
OEM # 913784, 3855270
Sierra # 18-1909-1
OMC-20-913784
$324
3” Spacer
HGE 3621PR
$357
Exhaust Manifold
HGE 7656M
OEM # 3847499, 3857656
Sierra # 18-1848
OMC-1-3857656
$420
Exhaust Riser
HGE 7037M
OEM # 857037
Sierra 18-1936
$320
Exhaust Manifold
HGE 6894M
OEM # 856894-1
Sierra # 18-1932
$490
Dry Joint Tall Exhaust Riser
HGE 4591 (8″)
OEM # 864591
Sierra # 18-1845
MC-20-864591
$580
Dry Joint Exhaust Riser
HGE 4309M (6.7″)
OEM # 864309
MC-20-864309
$454
3" Dry Joint Spacer
HGE 4929PR
OEM # 864929
Sierra # 18-1847K
MC-20-864929A3
$668
Dry Joint Exhaust Manifold
HGE 4612M
OEM # 864612
Sierra # 18-1952-1
MC-1-864612
$570
Exhaust Riser
HGE 4354
OEM # 44354, 807914, 807988
Sierra 18-1976-1
MC-20-44354
$286
3” Spacer
HGE 3320PR
OEM # 93320
Sierra # 18-1908
MC-20-93320A3
$385
Wet Joint Exhaust Manifold
HGE 9746
OEM # 99746
Sierra # 18-1952-1
MC-1-99746
$488
Exhaust Riser
HGE 2603M
OEM # 3862603
OMC-20-3862603
$400
Exhaust Manifold
HGE 8870M
OEM # 3858870,3858870, 986985, 3854045, 3857450, 3858871
OMC-1-3858870
$864
Exhaust Manifold
HGE 1235
OEM # 860235
Sierra # 18-1966-1
MC-1-860235
$780
Exhaust Riser
HGE 2076
OEM # 12076
Sierra # 18-1975-1
MC-20-12076
$308
Exhaust Riser
HGE 6351
OEM # 76351
MC-20-76351
$405
Exhaust Manifold
HGE 9798
OEM # 99798
Sierra # 18-1956-3
MC-1-99798
$800