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Thread: Oilhead Sight Glass

  1. #1
    RK Ryder
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    Oilhead Sight Glass

    It was mentioned in a recent post the newer sight windows for Oilheads are now glass rather than plastic. Does anyone know when the switch was made from plastic to glass? Curious as mine was last replaced in 2009.
    Paul F. Ruffell
    Retired and riding my RTs, the '87 K100 & the '98 R1100 !
    Knights of the Roundel #333

  2. #2
    Liaison 20774's Avatar
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    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    I can't answer the specific date question but will offer that if I were to believe certain absolutely certain statements in that thread I would be forced to conclude that my pencil-type soldering iron melts glass. Or, maybe a person could get cut on a shard of broken plastic. Take your pick.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  4. #4
    Registered User GTRider's Avatar
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    There has been some supersession on part numbers for the sight glass. This is what RealOEM shows now:

    11 11 8 523 906

    Oil-level check
    From:05/05/2011To:-Weight:0.029 kgPrice:
    Supersedes:

    11118527546 (08/01/2010 — 07/19/2011),
    Exchangeable retrospectively11117710474 (03/01/2008 — 11/15/2010),
    Exchangeable retrospectively11117703823 (03/01/2007 — 03/14/2008),
    Exchangeable retrospectively11117661648 (05/29/2000 — 04/19/2007),
    Exchangeable retrospectively11111465293 (06/01/1998 — 07/26/2000),
    Exchangeable retrospectively11111460774 (08/01/1983 — 08/07/1998)

    Part 11118523906 was found on the following vehicles:
    K25 (R 1200 GS)   (12/2002 — 12/2012)
    K25 (R 1200 GS Adventure)   (03/2005 — 07/2013)
    K25 (HP)   (08/2004 — 11/2008)
    K26 (R 900 RT, R 1200 RT)   (11/2003 — 06/2014)
    K27 (R 1200 R)   (11/2005 — 07/2014)
    K28 (R 1200 ST)   (05/2003 — 11/2007)
    K29 (R 1200 S, HP2 Sport)   (11/2004 — 07/2010)
    K21 (R nineT)   (01/2013 — 12/2019)
    K22 (R nineT Pure)   (12/2015 — 12/2019)
    K23 (R nineT Scrambler)   (09/2015 — 12/2019)
    K32 (R nineT Racer)   (12/2015 — 07/2019)
    K33 (R nineT Urban G/S)   (03/2016 — 12/2019)
    K42 (HP4)   (09/2011 — 07/2014)
    K46 (S 1000 RR)   (09/2008 — 11/2018)
    K47 (S 1000 R)   (02/2013 — 12/2019)
    K49 (S 1000 XR)   (05/2014 — 11/2019)
    K67 (S 1000 RR)   (02/2018 — 12/2019)
    K69 (S 1000 XR)   (12/2018 — 11/2019)
    R13 (F 650 GS, GS Dakar)   (02/1999 — 10/2007)
    259 (R 850 GS, R 1100 GS)   (04/1993 — 07/2006)
    R21 (R 1150 GS)   (09/1998 — 11/2003)
    R21 (R 1150 GS Adventure)   (07/2001 — 09/2005)
    259R (R 850 R, R 1100 R)   (09/1993 — 11/2002)
    R28 (R 850 R, R 1150 R, Rockster)   (11/1999 — 07/2007)
    259 (R 850 RT, R 1100 RT)   (05/1994 — 11/2001)
    R22 (R 850 RT, R 1150 RT, R 1150 RS)   (01/2000 — 03/2006)
    259 (R 1100 S, R 1100 RS)   (01/1992 — 07/2005)
    259C (R 850 C, R 1200 C)   (04/1996 — 07/2004)
    259C (R 1200 C Montauk)   (10/2002 — 10/2004)
    259C (R 1200 C Independent)   (05/2000 — 08/2004)
    K30 (R1200 CL)   (10/2001 — 07/2004)
    K589 (K1, K 100 RS)   (08/1988 — 09/1993)
    K589 (K 1100 RS, K 1100 LT)   (06/1989 — 04/1999)
    K589 (K 1200 RS, K 1200 LT)   (04/1996 — 07/2008)
    K41 (K 1200 GT, K 1200 RS)   (03/2000 — 07/2005)
    K589 (K100, RS, RT, LT)   (05/1982 — 10/1991)
    K569 (K 75, K 75 C, K 75 S, K 75 RT)   (12/1984 — 06/2005)
    A61   (01/1997 — 01/2000)
    A67   (06/2005 — 09/2005)

    Best,
    DeVern
    Last edited by GTRider; 05-01-2021 at 12:36 AM.
    DGerber
    1983 R80ST 1984 R80 G/S-PD 2004 K1200GT w/Hannigan S/C 2010 K1300GT 2018 R1200GS
    BMWMOA#52184, AMA#271542, IBA#138

  5. #5
    Registered User m_stock10506's Avatar
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    Quote Originally Posted by Paul_F View Post
    It was mentioned in a recent post the newer sight windows for Oilheads are now glass rather than plastic. Does anyone know when the switch was made from plastic to glass? Curious as mine was last replaced in 2009.
    I can't find a photo to prove this, but I believe that the older plastic sight glass had a dot in the center. The new glass windows only have a circle on the outer edge.

    Maybe someone with an original Oilhead sight window can verify.
    Michael Stock, Trinity, NC
    R1100RT, R100, R60/6

  6. #6
    Registered User
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    New Jersey
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    Quote Originally Posted by m_stock10506 View Post
    I can't find a photo to prove this, but I believe that the older plastic sight glass had a dot in the center. The new glass windows only have a circle on the outer edge.

    Maybe someone with an original Oilhead sight window can verify.
    My original plastic version had a red dot in the center. The new glass version does not.

  7. #7
    RK Ryder
    Join Date
    Sep 2005
    Location
    London, Ontario
    Posts
    3,102
    Quote Originally Posted by GTRider View Post
    There has been some supersession on part numbers for the sight glass. This is what RealOEM shows now:

    11 11 8 523 906

    Oil-level check
    From:05/05/2011To:-Weight:0.029 kgPrice:
    Supersedes:

    11118527546 (08/01/2010 07/19/2011),
    Exchangeable retrospectively11117710474 (03/01/2008 11/15/2010),
    Exchangeable retrospectively11117703823 (03/01/2007 03/14/2008),
    Exchangeable retrospectively11117661648 (05/29/2000 04/19/2007),
    Exchangeable retrospectively11111465293 (06/01/1998 07/26/2000),
    Exchangeable retrospectively11111460774 (08/01/1983 08/07/1998)

    Part 11118523906 was found on the following vehicles:
    K25 (R 1200 GS)   (12/2002 12/2012)
    K25 (R 1200 GS Adventure)   (03/2005 07/2013)
    K25 (HP)   (08/2004 11/2008)
    K26 (R 900 RT, R 1200 RT)   (11/2003 06/2014)
    K27 (R 1200 R)   (11/2005 07/2014)
    K28 (R 1200 ST)   (05/2003 11/2007)
    K29 (R 1200 S, HP2 Sport)   (11/2004 07/2010)
    K21 (R nineT)   (01/2013 12/2019)
    K22 (R nineT Pure)   (12/2015 12/2019)
    K23 (R nineT Scrambler)   (09/2015 12/2019)
    K32 (R nineT Racer)   (12/2015 07/2019)
    K33 (R nineT Urban G/S)   (03/2016 12/2019)
    K42 (HP4)   (09/2011 07/2014)
    K46 (S 1000 RR)   (09/2008 11/2018)
    K47 (S 1000 R)   (02/2013 12/2019)
    K49 (S 1000 XR)   (05/2014 11/2019)
    K67 (S 1000 RR)   (02/2018 12/2019)
    K69 (S 1000 XR)   (12/2018 11/2019)
    R13 (F 650 GS, GS Dakar)   (02/1999 10/2007)
    259 (R 850 GS, R 1100 GS)   (04/1993 07/2006)
    R21 (R 1150 GS)   (09/1998 11/2003)
    R21 (R 1150 GS Adventure)   (07/2001 09/2005)
    259R (R 850 R, R 1100 R)   (09/1993 11/2002)
    R28 (R 850 R, R 1150 R, Rockster)   (11/1999 07/2007)
    259 (R 850 RT, R 1100 RT)   (05/1994 11/2001)
    R22 (R 850 RT, R 1150 RT, R 1150 RS)   (01/2000 03/2006)
    259 (R 1100 S, R 1100 RS)   (01/1992 07/2005)
    259C (R 850 C, R 1200 C)   (04/1996 07/2004)
    259C (R 1200 C Montauk)   (10/2002 10/2004)
    259C (R 1200 C Independent)   (05/2000 08/2004)
    K30 (R1200 CL)   (10/2001 07/2004)
    K589 (K1, K 100 RS)   (08/1988 09/1993)
    K589 (K 1100 RS, K 1100 LT)   (06/1989 04/1999)
    K589 (K 1200 RS, K 1200 LT)   (04/1996 07/2008)
    K41 (K 1200 GT, K 1200 RS)   (03/2000 07/2005)
    K589 (K100, RS, RT, LT)   (05/1982 10/1991)
    K569 (K 75, K 75 C, K 75 S, K 75 RT)   (12/1984 06/2005)
    A61   (01/1997 01/2000)
    A67   (06/2005 09/2005)

    Best,
    DeVern
    Wow! That's a lot information; thanks!


    Quote Originally Posted by mtraphagen View Post
    My original plastic version had a red dot in the center. The new glass version does not.
    Mine has no red dot so it must be glass.

    Thank you!
    Paul F. Ruffell
    Retired and riding my RTs, the '87 K100 & the '98 R1100 !
    Knights of the Roundel #333

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